[fastlane] Use backticks instead of Helper.backticks (#4538)
[fastlane] Use backticks instead of Helper.backticks (#4538)

When using Helper.backticks by default the executed command and the output is printed out. Since `available_lanes` is called every time you run fastlane, it's super confusing for the user when we print out this every time you run fastlane:

```
[00:44:05]: $ cat ./fastlane/Fastfile | grep "^ *lane :" | awk -F ':' '{print $2}' | awk -F ' ' '{print $1}'
[00:44:05]: ▸ bump
[00:44:05]: ▸ show_changelog
[00:44:05]: ▸ release
```
sschlein/fastlane,fulldecent/fastlane,allewun/fastlane,SiarheiFedartsou/fastlane,dowjones/fastlane,nafu/fastlane,fastlane/fastlane,lacostej/fastlane,thasegaw/fastlane,ffittschen/fastlane,dral3x/fastlane,javibm/fastlane,brbulic/fastlane,ashfurrow/fastlane,jaleksynas/fastlane,Sajjon/fastlane,lmirosevic/fastlane,adamcohenrose/fastlane,soxjke/fastlane,marcelofabri/fastlane,SiarheiFedartsou/fastlane,bgannin/fastlane,kndl/fastlane,ffittschen/fastlane,sschlein/fastlane,fastlane/fastlane,neonichu/fastlane,farkasseb/fastlane,dral3x/fastlane,taquitos/fastlane,sinoru/fastlane,javibm/fastlane,adellibovi/fastlane,fulldecent/fastlane,SiarheiFedartsou/fastlane,dowjones/fastlane,SiarheiFedartsou/fastlane,adellibovi/fastlane,sschlein/fastlane,kazuhidet/fastlane,RishabhTayal/fastlane,joshdholtz/fastlane,Fanagame/fastlane,dowjones/fastlane,bgannin/fastlane,SandyChapman/fastlane,keatongreve/fastlane,thelvis4/fastlane,farkasseb/fastlane,sschlein/fastlane,adellibovi/fastlane,manuyavuz/fastlane,thelvis4/fastlane,fcy/fastlane,bassrock/fastlane,Econa77/fastlane,kazuhidet/fastlane,soxjke/fastlane,sinoru/fastlane,fcy/fastlane,luongm/fastlane,ashfurrow/fastlane,smallmiro/fastlane,tommeier/fastlane,Econa77/fastlane,lmirosevic/fastlane,brbulic/fastlane,lyndsey-ferguson/fastlane,iCell/fastlane,tcurdt/fastlane,ffittschen/fastlane,cpunion/fastlane,mgrebenets/fastlane,Liquidsoul/fastlane,powtac/fastlane,SiarheiFedartsou/fastlane,NicholasFFox/fastlane,olegoid/fastlane,mathiasAichinger/fastlane,fulldecent/fastlane,RishabhTayal/fastlane,mbogh/fastlane,futuretap/fastlane,vronin/fastlane,vronin/fastlane,nafu/fastlane,phatblat/fastlane,kazuhidet/fastlane,bgannin/fastlane,javibm/fastlane,NicholasFFox/fastlane,fabiomassimo/fastlane,hjanuschka/fastlane,fabiomassimo/fastlane,mgrebenets/fastlane,KrauseFx/fastlane,bgannin/fastlane,phatblat/fastlane,keatongreve/fastlane,SemenovAlexander/fastlane,tmtrademarked/fastlane,joshdholtz/fastlane,mbogh/fastlane,Sajjon/fastlane,smallmiro/fastlane,mathiasAichinger/fastlane,bolom/fastlane,SandyChapman/fastlane,kazuhidet/fastlane,thasegaw/fastlane,neonichu/fastlane,kndl/fastlane,vronin/fastlane,tpalmer/fastlane,Liquidsoul/fastlane,fulldecent/fastlane,revile/fastlane,dowjones/fastlane,rimarsh/fastlane,luongm/fastlane,farkasseb/fastlane,brbulic/fastlane,mgamer/fastlane,fabiomassimo/fastlane,Sajjon/fastlane,cpunion/fastlane,tmtrademarked/fastlane,Fanagame/fastlane,iCell/fastlane,ExtremeMan/fastlane,joshrlesch/fastlane,adellibovi/fastlane,icecrystal23/fastlane,enozero/fastlane,marcelofabri/fastlane,icecrystal23/fastlane,ExtremeMan/fastlane,SiarheiFedartsou/fastlane,hjanuschka/fastlane,mgrebenets/fastlane,tcurdt/fastlane,bolom/fastlane,Econa77/fastlane,cpunion/fastlane,SandyChapman/fastlane,manuyavuz/fastlane,thelvis4/fastlane,tommeier/fastlane,neonichu/fastlane,iMokhles/fastlane,marcelofabri/fastlane,SandyChapman/fastlane,jorgeazevedo/fastlane,Sajjon/fastlane,hjanuschka/fastlane,revile/fastlane,powtac/fastlane,fabiomassimo/fastlane,neonichu/fastlane,SandyChapman/fastlane,bolom/fastlane,tcurdt/fastlane,matthewellis/fastlane,mbogh/fastlane,fulldecent/fastlane,taquitos/fastlane,ashfurrow/fastlane,powtac/fastlane,daveanderson/fastlane,mgrebenets/fastlane,sinoru/fastlane,Fanagame/fastlane,kndl/fastlane,cpk1/fastlane,iCell/fastlane,mbogh/fastlane,Econa77/fastlane,daveanderson/fastlane,iMokhles/fastlane,danielbowden/fastlane,ExtremeMan/fastlane,jeeftor/fastlane,orta/fastlane,milch/fastlane,kndl/fastlane,milch/fastlane,iMokhles/fastlane,KrauseFx/fastlane,tpalmer/fastlane,lmirosevic/fastlane,danielbowden/fastlane,iCell/fastlane,iMokhles/fastlane,lacostej/fastlane,tmtrademarked/fastlane,jaleksynas/fastlane,phatblat/fastlane,joshdholtz/fastlane,dowjones/fastlane,brbulic/fastlane,fulldecent/fastlane,KrauseFx/fastlane,mgrebenets/fastlane,manuyavuz/fastlane,allewun/fastlane,KrauseFx/fastlane,ashfurrow/fastlane,jaleksynas/fastlane,cpk1/fastlane,sylvek/fastlane,sylvek/fastlane,thasegaw/fastlane,dral3x/fastlane,SandyChapman/fastlane,dowjones/fastlane,neonichu/fastlane,mathiasAichinger/fastlane,olegoid/fastlane,rimarsh/fastlane,ashfurrow/fastlane,powtac/fastlane,mgamer/fastlane,cpk1/fastlane,matthewellis/fastlane,Fanagame/fastlane,smallmiro/fastlane,orta/fastlane,NicholasFFox/fastlane,jorgeazevedo/fastlane,bolom/fastlane,thelvis4/fastlane,futuretap/fastlane,nafu/fastlane,marcelofabri/fastlane,fcy/fastlane,sinoru/fastlane,kndl/fastlane,tmtrademarked/fastlane,dral3x/fastlane,vronin/fastlane,keatongreve/fastlane,powtac/fastlane,javibm/fastlane,mgamer/fastlane,thasegaw/fastlane,joshrlesch/fastlane,adellibovi/fastlane,hjanuschka/fastlane,iMokhles/fastlane,futuretap/fastlane,bgannin/fastlane,bassrock/fastlane,tommeier/fastlane,KrauseFx/fastlane,phatblat/fastlane,nafu/fastlane,manuyavuz/fastlane,mgamer/fastlane,RishabhTayal/fastlane,farkasseb/fastlane,mgrebenets/fastlane,iMokhles/fastlane,tcurdt/fastlane,soxjke/fastlane,bassrock/fastlane,daveanderson/fastlane,tcurdt/fastlane,SemenovAlexander/fastlane,olegoid/fastlane,lyndsey-ferguson/fastlane,bassrock/fastlane,rimarsh/fastlane,SemenovAlexander/fastlane,ExtremeMan/fastlane,jaleksynas/fastlane,luongm/fastlane,marcelofabri/fastlane,jorgeazevedo/fastlane,hjanuschka/fastlane,brbulic/fastlane,KrauseFx/fastlane,thelvis4/fastlane,lacostej/fastlane,fabiomassimo/fastlane,ffittschen/fastlane,iCell/fastlane,luongm/fastlane,allewun/fastlane,sinoru/fastlane,jeeftor/fastlane,ExtremeMan/fastlane,Econa77/fastlane,danielbowden/fastlane,tpalmer/fastlane,SemenovAlexander/fastlane,revile/fastlane,cpk1/fastlane,daveanderson/fastlane,kazuhidet/fastlane,kohtenko/fastlane,ffittschen/fastlane,ashfurrow/fastlane,adellibovi/fastlane,luongm/fastlane,matthewellis/fastlane,jeeftor/fastlane,sinoru/fastlane,ffittschen/fastlane,jorgeazevedo/fastlane,jeeftor/fastlane,lmirosevic/fastlane,bassrock/fastlane,futuretap/fastlane,ExtremeMan/fastlane,fastlane/fastlane,SemenovAlexander/fastlane,mbogh/fastlane,joshrlesch/fastlane,phatblat/fastlane,taquitos/fastlane,sschlein/fastlane,daveanderson/fastlane,jorgeazevedo/fastlane,tommeier/fastlane,milch/fastlane,NicholasFFox/fastlane,futuretap/fastlane,SandyChapman/fastlane,fulldecent/fastlane,cpunion/fastlane,SemenovAlexander/fastlane,revile/fastlane,powtac/fastlane,matthewellis/fastlane,iMokhles/fastlane,NicholasFFox/fastlane,lyndsey-ferguson/fastlane,tpalmer/fastlane,Sajjon/fastlane,vronin/fastlane,brbulic/fastlane,javibm/fastlane,vronin/fastlane,tmtrademarked/fastlane,kazuhidet/fastlane,cpunion/fastlane,fcy/fastlane,rimarsh/fastlane,sylvek/fastlane,RishabhTayal/fastlane,enozero/fastlane,luongm/fastlane,matthewellis/fastlane,danielbowden/fastlane,mbogh/fastlane,olegoid/fastlane,bassrock/fastlane,luongm/fastlane,sschlein/fastlane,smallmiro/fastlane,olegoid/fastlane,danielbowden/fastlane,fabiomassimo/fastlane,thasegaw/fastlane,tommeier/fastlane,rimarsh/fastlane,lyndsey-ferguson/fastlane,adamcohenrose/fastlane,cpk1/fastlane,Econa77/fastlane,soxjke/fastlane,phatblat/fastlane,tpalmer/fastlane,soxjke/fastlane,lyndsey-ferguson/fastlane,joshrlesch/fastlane,milch/fastlane,taquitos/fastlane,ffittschen/fastlane,joshrlesch/fastlane,allewun/fastlane,joshrlesch/fastlane,vronin/fastlane,phatblat/fastlane,futuretap/fastlane,kndl/fastlane,SiarheiFedartsou/fastlane,RishabhTayal/fastlane,javibm/fastlane,bolom/fastlane,icecrystal23/fastlane,jorgeazevedo/fastlane,allewun/fastlane,powtac/fastlane,jaleksynas/fastlane,daveanderson/fastlane,adamcohenrose/fastlane,kazuhidet/fastlane,enozero/fastlane,lacostej/fastlane,smallmiro/fastlane,allewun/fastlane,KrauseFx/fastlane,marcelofabri/fastlane,RishabhTayal/fastlane,lyndsey-ferguson/fastlane,jeeftor/fastlane,tmtrademarked/fastlane,keatongreve/fastlane,revile/fastlane,thelvis4/fastlane,tcurdt/fastlane,mgamer/fastlane,bgannin/fastlane,mathiasAichinger/fastlane,farkasseb/fastlane,icecrystal23/fastlane,marcelofabri/fastlane,dral3x/fastlane,jeeftor/fastlane,enozero/fastlane,mgrebenets/fastlane,taquitos/fastlane,milch/fastlane,Liquidsoul/fastlane,allewun/fastlane,neonichu/fastlane,Fanagame/fastlane,adamcohenrose/fastlane,olegoid/fastlane,lacostej/fastlane,nafu/fastlane,keatongreve/fastlane,enozero/fastlane,tpalmer/fastlane,mathiasAichinger/fastlane,bgannin/fastlane,manuyavuz/fastlane,danielbowden/fastlane,joshdholtz/fastlane,rimarsh/fastlane,jorgeazevedo/fastlane,Sajjon/fastlane,fcy/fastlane,tpalmer/fastlane,Fanagame/fastlane,tmtrademarked/fastlane,bolom/fastlane,sylvek/fastlane,keatongreve/fastlane,ExtremeMan/fastlane,jaleksynas/fastlane,farkasseb/fastlane,adellibovi/fastlane,adamcohenrose/fastlane,adamcohenrose/fastlane,farkasseb/fastlane,olegoid/fastlane,fcy/fastlane,Liquidsoul/fastlane,brbulic/fastlane,keatongreve/fastlane,jaleksynas/fastlane,milch/fastlane,nafu/fastlane,adamcohenrose/fastlane,tommeier/fastlane,mathiasAichinger/fastlane,sinoru/fastlane,dowjones/fastlane,soxjke/fastlane,lmirosevic/fastlane,smallmiro/fastlane,NicholasFFox/fastlane,fcy/fastlane,sylvek/fastlane,Liquidsoul/fastlane,enozero/fastlane,matthewellis/fastlane,smallmiro/fastlane,RishabhTayal/fastlane,kohtenko/fastlane,taquitos/fastlane,lmirosevic/fastlane,revile/fastlane,mgamer/fastlane,sylvek/fastlane,Sajjon/fastlane,lacostej/fastlane,iCell/fastlane,cpk1/fastlane,neonichu/fastlane,joshrlesch/fastlane,Fanagame/fastlane,fastlane/fastlane,taquitos/fastlane,icecrystal23/fastlane,futuretap/fastlane,manuyavuz/fastlane,iCell/fastlane,milch/fastlane,joshdholtz/fastlane,cpk1/fastlane,danielbowden/fastlane,icecrystal23/fastlane,sschlein/fastlane,Econa77/fastlane,hjanuschka/fastlane,ashfurrow/fastlane,cpunion/fastlane,Liquidsoul/fastlane,enozero/fastlane,thasegaw/fastlane,soxjke/fastlane,lyndsey-ferguson/fastlane,cpunion/fastlane,lmirosevic/fastlane,fastlane/fastlane,Liquidsoul/fastlane,mathiasAichinger/fastlane,revile/fastlane,tcurdt/fastlane,sylvek/fastlane,joshdholtz/fastlane,kndl/fastlane,dral3x/fastlane,javibm/fastlane,matthewellis/fastlane,manuyavuz/fastlane,fabiomassimo/fastlane,SemenovAlexander/fastlane,rimarsh/fastlane,joshdholtz/fastlane,mgamer/fastlane,thasegaw/fastlane,nafu/fastlane,mbogh/fastlane,dral3x/fastlane,fastlane/fastlane,bolom/fastlane,hjanuschka/fastlane,NicholasFFox/fastlane,thelvis4/fastlane,tommeier/fastlane,jeeftor/fastlane,daveanderson/fastlane