Add opt-in for nightly builds using update_fastlane(nightly: true) (#8720)
Add opt-in for nightly builds using update_fastlane(nightly: true) (#8720)

* Add opt-in for nightly builds using update_fastlane(nightly: true)

- Make it easy for people that use `update_fastlane` to opt-into nightly fastlane builds
- Tell people about how to enable it
- Thank people for using it

* Keep behaviour for non-nigthly builds the same

* Fix update checker regression in `fastlane env` and `update_fastlane`

* Update tests and code style

* Update rubocop styles

* Update spec

* Add necessary emojis to output

* Update spec

mgrebenets/fastlane,luongm/fastlane,rimarsh/fastlane,tmtrademarked/fastlane,ashfurrow/fastlane,enozero/fastlane,vronin/fastlane,powtac/fastlane,manuyavuz/fastlane,kohtenko/fastlane,lacostej/fastlane,brbulic/fastlane,nafu/fastlane,SiarheiFedartsou/fastlane,rimarsh/fastlane,marcelofabri/fastlane,SemenovAlexander/fastlane,bolom/fastlane,allewun/fastlane,nafu/fastlane,danielbowden/fastlane,revile/fastlane,soxjke/fastlane,javibm/fastlane,brbulic/fastlane,jaleksynas/fastlane,ExtremeMan/fastlane,danielbowden/fastlane,ffittschen/fastlane,kazuhidet/fastlane,kazuhidet/fastlane,joshdholtz/fastlane,taquitos/fastlane,ashfurrow/fastlane,ashfurrow/fastlane,hjanuschka/fastlane,lacostej/fastlane,lacostej/fastlane,marcelofabri/fastlane,rimarsh/fastlane,jaleksynas/fastlane,allewun/fastlane,cpk1/fastlane,adamcohenrose/fastlane,ExtremeMan/fastlane,taquitos/fastlane,sinoru/fastlane,manuyavuz/fastlane,Fanagame/fastlane,Fanagame/fastlane,hjanuschka/fastlane,kohtenko/fastlane,adamcohenrose/fastlane,mathiasAichinger/fastlane,daveanderson/fastlane,mathiasAichinger/fastlane,soxjke/fastlane,KrauseFx/fastlane,Fanagame/fastlane,revile/fastlane,thasegaw/fastlane,thasegaw/fastlane,bassrock/fastlane,tmtrademarked/fastlane,matthewellis/fastlane,adamcohenrose/fastlane,hjanuschka/fastlane,marcelofabri/fastlane,joshdholtz/fastlane,ExtremeMan/fastlane,daveanderson/fastlane,daveanderson/fastlane,soxjke/fastlane,NicholasFFox/fastlane,icecrystal23/fastlane,kazuhidet/fastlane,revile/fastlane,soxjke/fastlane,Fanagame/fastlane,mathiasAichinger/fastlane,KrauseFx/fastlane,luongm/fastlane,powtac/fastlane,mgrebenets/fastlane,SiarheiFedartsou/fastlane,manuyavuz/fastlane,marcelofabri/fastlane,SemenovAlexander/fastlane,cpk1/fastlane,farkasseb/fastlane,dral3x/fastlane,KrauseFx/fastlane,hjanuschka/fastlane,fastlane/fastlane,soxjke/fastlane,ExtremeMan/fastlane,orta/fastlane,dral3x/fastlane,mbogh/fastlane,mgrebenets/fastlane,joshdholtz/fastlane,thasegaw/fastlane,lacostej/fastlane,adamcohenrose/fastlane,bassrock/fastlane,jaleksynas/fastlane,jaleksynas/fastlane,adellibovi/fastlane,KrauseFx/fastlane,joshdholtz/fastlane,danielbowden/fastlane,bolom/fastlane,bassrock/fastlane,daveanderson/fastlane,ffittschen/fastlane,ffittschen/fastlane,sinoru/fastlane,adamcohenrose/fastlane,Econa77/fastlane,hjanuschka/fastlane,sinoru/fastlane,farkasseb/fastlane,kazuhidet/fastlane,Fanagame/fastlane,enozero/fastlane,icecrystal23/fastlane,dral3x/fastlane,keatongreve/fastlane,mgrebenets/fastlane,keatongreve/fastlane,danielbowden/fastlane,ExtremeMan/fastlane,bolom/fastlane,javibm/fastlane,bassrock/fastlane,NicholasFFox/fastlane,soxjke/fastlane,adamcohenrose/fastlane,luongm/fastlane,brbulic/fastlane,taquitos/fastlane,tmtrademarked/fastlane,ffittschen/fastlane,SiarheiFedartsou/fastlane,taquitos/fastlane,revile/fastlane,joshdholtz/fastlane,SemenovAlexander/fastlane,Fanagame/fastlane,adellibovi/fastlane,ffittschen/fastlane,mbogh/fastlane,vronin/fastlane,mbogh/fastlane,mgrebenets/fastlane,sinoru/fastlane,taquitos/fastlane,Econa77/fastlane,NicholasFFox/fastlane,lacostej/fastlane,ashfurrow/fastlane,icecrystal23/fastlane,dral3x/fastlane,hjanuschka/fastlane,manuyavuz/fastlane,mbogh/fastlane,allewun/fastlane,matthewellis/fastlane,vronin/fastlane,icecrystal23/fastlane,javibm/fastlane,farkasseb/fastlane,mathiasAichinger/fastlane,farkasseb/fastlane,Econa77/fastlane,cpk1/fastlane,tmtrademarked/fastlane,adellibovi/fastlane,luongm/fastlane,mgrebenets/fastlane,icecrystal23/fastlane,adellibovi/fastlane,rimarsh/fastlane,joshdholtz/fastlane,javibm/fastlane,KrauseFx/fastlane,daveanderson/fastlane,adellibovi/fastlane,keatongreve/fastlane,adamcohenrose/fastlane,adellibovi/fastlane,SemenovAlexander/fastlane,mathiasAichinger/fastlane,mathiasAichinger/fastlane,fastlane/fastlane,matthewellis/fastlane,cpk1/fastlane,farkasseb/fastlane,allewun/fastlane,enozero/fastlane,keatongreve/fastlane,sinoru/fastlane,mbogh/fastlane,daveanderson/fastlane,nafu/fastlane,manuyavuz/fastlane,enozero/fastlane,vronin/fastlane,KrauseFx/fastlane,brbulic/fastlane,jaleksynas/fastlane,matthewellis/fastlane,keatongreve/fastlane,matthewellis/fastlane,brbulic/fastlane,allewun/fastlane,ExtremeMan/fastlane,powtac/fastlane,SiarheiFedartsou/fastlane,bolom/fastlane,farkasseb/fastlane,enozero/fastlane,brbulic/fastlane,KrauseFx/fastlane,keatongreve/fastlane,Fanagame/fastlane,NicholasFFox/fastlane,powtac/fastlane,vronin/fastlane,taquitos/fastlane,revile/fastlane,thasegaw/fastlane,bolom/fastlane,manuyavuz/fastlane,cpk1/fastlane,brbulic/fastlane,powtac/fastlane,jaleksynas/fastlane,cpk1/fastlane,revile/fastlane,jaleksynas/fastlane,fastlane/fastlane,dral3x/fastlane,luongm/fastlane,nafu/fastlane,NicholasFFox/fastlane,tmtrademarked/fastlane,mathiasAichinger/fastlane,mgrebenets/fastlane,SemenovAlexander/fastlane,SiarheiFedartsou/fastlane,tmtrademarked/fastlane,kazuhidet/fastlane,hjanuschka/fastlane,enozero/fastlane,adellibovi/fastlane,SiarheiFedartsou/fastlane,rimarsh/fastlane,allewun/fastlane,Econa77/fastlane,marcelofabri/fastlane,ffittschen/fastlane,Econa77/fastlane,bassrock/fastlane,rimarsh/fastlane,SiarheiFedartsou/fastlane,ffittschen/fastlane,cpk1/fastlane,joshdholtz/fastlane,fastlane/fastlane,icecrystal23/fastlane,tmtrademarked/fastlane,vronin/fastlane,marcelofabri/fastlane,luongm/fastlane,enozero/fastlane,daveanderson/fastlane,kazuhidet/fastlane,SemenovAlexander/fastlane,Econa77/fastlane,sinoru/fastlane,nafu/fastlane,rimarsh/fastlane,mbogh/fastlane,nafu/fastlane,dral3x/fastlane,keatongreve/fastlane,dral3x/fastlane,matthewellis/fastlane,javibm/fastlane,javibm/fastlane,bolom/fastlane,javibm/fastlane,thasegaw/fastlane,soxjke/fastlane,fastlane/fastlane,powtac/fastlane,bolom/fastlane,allewun/fastlane,luongm/fastlane,revile/fastlane,nafu/fastlane,SemenovAlexander/fastlane,orta/fastlane,bassrock/fastlane,ashfurrow/fastlane,kazuhidet/fastlane,Econa77/fastlane,vronin/fastlane,NicholasFFox/fastlane,thasegaw/fastlane,sinoru/fastlane,taquitos/fastlane,mbogh/fastlane,powtac/fastlane,ashfurrow/fastlane,NicholasFFox/fastlane,fastlane/fastlane,danielbowden/fastlane,farkasseb/fastlane,ashfurrow/fastlane,ExtremeMan/fastlane,danielbowden/fastlane,danielbowden/fastlane,manuyavuz/fastlane,lacostej/fastlane,matthewellis/fastlane,thasegaw/fastlane,marcelofabri/fastlane