update-prod-static: Use a virtualenv to find dependencies.
update-prod-static: Use a virtualenv to find dependencies.

This is needed to support using update-deployment with a virtualenv.

souravbadami/zulip,zacps/zulip,brainwane/zulip,sonali0901/zulip,jackrzhang/zulip,aakash-cr7/zulip,timabbott/zulip,kou/zulip,reyha/zulip,niftynei/zulip,zacps/zulip,souravbadami/zulip,brainwane/zulip,cosmicAsymmetry/zulip,amanharitsh123/zulip,brockwhittaker/zulip,dhcrzf/zulip,ahmadassaf/zulip,rishig/zulip,rishig/zulip,rht/zulip,isht3/zulip,jrowan/zulip,andersk/zulip,christi3k/zulip,PhilSk/zulip,synicalsyntax/zulip,paxapy/zulip,jainayush975/zulip,isht3/zulip,amyliu345/zulip,reyha/zulip,samatdav/zulip,niftynei/zulip,brockwhittaker/zulip,ahmadassaf/zulip,shubhamdhama/zulip,Jianchun1/zulip,sharmaeklavya2/zulip,mohsenSy/zulip,arpith/zulip,dattatreya303/zulip,aakash-cr7/zulip,andersk/zulip,mohsenSy/zulip,peguin40/zulip,showell/zulip,isht3/zulip,jrowan/zulip,hackerkid/zulip,joyhchen/zulip,joyhchen/zulip,kou/zulip,verma-varsha/zulip,verma-varsha/zulip,Galexrt/zulip,punchagan/zulip,grave-w-grave/zulip,Diptanshu8/zulip,jackrzhang/zulip,JPJPJPOPOP/zulip,JPJPJPOPOP/zulip,JPJPJPOPOP/zulip,ryanbackman/zulip,jackrzhang/zulip,amyliu345/zulip,KingxBanana/zulip,niftynei/zulip,punchagan/zulip,andersk/zulip,zulip/zulip,zacps/zulip,tommyip/zulip,amyliu345/zulip,umkay/zulip,amyliu345/zulip,zulip/zulip,Jianchun1/zulip,KingxBanana/zulip,SmartPeople/zulip,showell/zulip,j831/zulip,j831/zulip,punchagan/zulip,ahmadassaf/zulip,showell/zulip,rht/zulip,grave-w-grave/zulip,krtkmj/zulip,kou/zulip,Diptanshu8/zulip,vikas-parashar/zulip,vabs22/zulip,sonali0901/zulip,aakash-cr7/zulip,Juanvulcano/zulip,vabs22/zulip,jackrzhang/zulip,shubhamdhama/zulip,krtkmj/zulip,hackerkid/zulip,isht3/zulip,PhilSk/zulip,brainwane/zulip,tommyip/zulip,cosmicAsymmetry/zulip,SmartPeople/zulip,zacps/zulip,mahim97/zulip,jrowan/zulip,synicalsyntax/zulip,reyha/zulip,krtkmj/zulip,calvinleenyc/zulip,andersk/zulip,vikas-parashar/zulip,dhcrzf/zulip,reyha/zulip,christi3k/zulip,arpith/zulip,ryanbackman/zulip,mohsenSy/zulip,amanharitsh123/zulip,eeshangarg/zulip,jainayush975/zulip,shubhamdhama/zulip,Diptanshu8/zulip,susansls/zulip,blaze225/zulip,shubhamdhama/zulip,rht/zulip,susansls/zulip,krtkmj/zulip,j831/zulip,dawran6/zulip,souravbadami/zulip,brainwane/zulip,eeshangarg/zulip,zulip/zulip,jphilipsen05/zulip,showell/zulip,zacps/zulip,vabs22/zulip,umkay/zulip,ryanbackman/zulip,souravbadami/zulip,joyhchen/zulip,aakash-cr7/zulip,KingxBanana/zulip,sonali0901/zulip,vabs22/zulip,calvinleenyc/zulip,PhilSk/zulip,samatdav/zulip,vaidap/zulip,amyliu345/zulip,Galexrt/zulip,sup95/zulip,AZtheAsian/zulip,blaze225/zulip,dattatreya303/zulip,souravbadami/zulip,jphilipsen05/zulip,JPJPJPOPOP/zulip,umkay/zulip,timabbott/zulip,Galexrt/zulip,eeshangarg/zulip,dhcrzf/zulip,paxapy/zulip,grave-w-grave/zulip,umkay/zulip,jphilipsen05/zulip,reyha/zulip,brockwhittaker/zulip,vaidap/zulip,amanharitsh123/zulip,Diptanshu8/zulip,vikas-parashar/zulip,peguin40/zulip,krtkmj/zulip,grave-w-grave/zulip,cosmicAsymmetry/zulip,amyliu345/zulip,paxapy/zulip,zulip/zulip,punchagan/zulip,blaze225/zulip,KingxBanana/zulip,mohsenSy/zulip,jrowan/zulip,vaidap/zulip,verma-varsha/zulip,sup95/zulip,joyhchen/zulip,hackerkid/zulip,dattatreya303/zulip,Galexrt/zulip,ryanbackman/zulip,vikas-parashar/zulip,dattatreya303/zulip,TigorC/zulip,samatdav/zulip,mohsenSy/zulip,joyhchen/zulip,synicalsyntax/zulip,AZtheAsian/zulip,kou/zulip,peguin40/zulip,sup95/zulip,j831/zulip,tommyip/zulip,timabbott/zulip,grave-w-grave/zulip,rht/zulip,niftynei/zulip,Juanvulcano/zulip,Jianchun1/zulip,mohsenSy/zulip,Juanvulcano/zulip,souravbadami/zulip,susansls/zulip,kou/zulip,KingxBanana/zulip,rishig/zulip,kou/zulip,vikas-parashar/zulip,tommyip/zulip,shubhamdhama/zulip,dhcrzf/zulip,synicalsyntax/zulip,tommyip/zulip,isht3/zulip,Jianchun1/zulip,rht/zulip,rishig/zulip,eeshangarg/zulip,samatdav/zulip,paxapy/zulip,ryanbackman/zulip,vaidap/zulip,christi3k/zulip,Juanvulcano/zulip,punchagan/zulip,TigorC/zulip,Galexrt/zulip,AZtheAsian/zulip,rht/zulip,zulip/zulip,dawran6/zulip,ryanbackman/zulip,showell/zulip,ahmadassaf/zulip,sonali0901/zulip,jainayush975/zulip,dawran6/zulip,hackerkid/zulip,PhilSk/zulip,dhcrzf/zulip,eeshangarg/zulip,zulip/zulip,andersk/zulip,Juanvulcano/zulip,arpith/zulip,Galexrt/zulip,samatdav/zulip,zacps/zulip,shubhamdhama/zulip,susansls/zulip,verma-varsha/zulip,AZtheAsian/zulip,eeshangarg/zulip,Jianchun1/zulip,isht3/zulip,verma-varsha/zulip,niftynei/zulip,dattatreya303/zulip,umkay/zulip,j831/zulip,brainwane/zulip,timabbott/zulip,andersk/zulip,krtkmj/zulip,mahim97/zulip,dhcrzf/zulip,KingxBanana/zulip,grave-w-grave/zulip,ahmadassaf/zulip,jphilipsen05/zulip,jrowan/zulip,synicalsyntax/zulip,vaidap/zulip,joyhchen/zulip,umkay/zulip,hackerkid/zulip,blaze225/zulip,cosmicAsymmetry/zulip,peguin40/zulip,jainayush975/zulip,zulip/zulip,eeshangarg/zulip,calvinleenyc/zulip,jackrzhang/zulip,christi3k/zulip,punchagan/zulip,tommyip/zulip,dawran6/zulip,vabs22/zulip,niftynei/zulip,PhilSk/zulip,sharmaeklavya2/zulip,paxapy/zulip,ahmadassaf/zulip,brockwhittaker/zulip,SmartPeople/zulip,susansls/zulip,sup95/zulip,showell/zulip,Galexrt/zulip,peguin40/zulip,dawran6/zulip,hackerkid/zulip,brainwane/zulip,blaze225/zulip,calvinleenyc/zulip,jainayush975/zulip,ahmadassaf/zulip,hackerkid/zulip,brockwhittaker/zulip,PhilSk/zulip,kou/zulip,timabbott/zulip,synicalsyntax/zulip,mahim97/zulip,Jianchun1/zulip,rishig/zulip,calvinleenyc/zulip,cosmicAsymmetry/zulip,aakash-cr7/zulip,TigorC/zulip,JPJPJPOPOP/zulip,TigorC/zulip,sharmaeklavya2/zulip,umkay/zulip,Diptanshu8/zulip,TigorC/zulip,amanharitsh123/zulip,krtkmj/zulip,jackrzhang/zulip,andersk/zulip,dhcrzf/zulip,jainayush975/zulip,christi3k/zulip,arpith/zulip,SmartPeople/zulip,sharmaeklavya2/zulip,mahim97/zulip,dattatreya303/zulip,rht/zulip,j831/zulip,SmartPeople/zulip,susansls/zulip,verma-varsha/zulip,JPJPJPOPOP/zulip,showell/zulip,shubhamdhama/zulip,brockwhittaker/zulip,amanharitsh123/zulip,arpith/zulip,synicalsyntax/zulip,jphilipsen05/zulip,jrowan/zulip,mahim97/zulip,dawran6/zulip,aakash-cr7/zulip,paxapy/zulip,TigorC/zulip,blaze225/zulip,sharmaeklavya2/zulip,AZtheAsian/zulip,jphilipsen05/zulip,AZtheAsian/zulip,brainwane/zulip,sup95/zulip,sonali0901/zulip,vabs22/zulip,punchagan/zulip,timabbott/zulip,calvinleenyc/zulip,vaidap/zulip,vikas-parashar/zulip,Diptanshu8/zulip,christi3k/zulip,reyha/zulip,timabbott/zulip,jackrzhang/zulip,sharmaeklavya2/zulip,peguin40/zulip,sonali0901/zulip,amanharitsh123/zulip,rishig/zulip,Juanvulcano/zulip,arpith/zulip,mahim97/zulip,cosmicAsymmetry/zulip,sup95/zulip,tommyip/zulip,SmartPeople/zulip,samatdav/zulip,rishig/zulip