requirements: Upgrade requests to latest version.
requirements: Upgrade requests to latest version.

Fixes #5455

synicalsyntax/zulip,jrowan/zulip,brockwhittaker/zulip,rht/zulip,rht/zulip,verma-varsha/zulip,vabs22/zulip,jackrzhang/zulip,zulip/zulip,jrowan/zulip,eeshangarg/zulip,mahim97/zulip,brockwhittaker/zulip,shubhamdhama/zulip,tommyip/zulip,eeshangarg/zulip,eeshangarg/zulip,andersk/zulip,andersk/zulip,hackerkid/zulip,timabbott/zulip,rishig/zulip,zulip/zulip,andersk/zulip,punchagan/zulip,dhcrzf/zulip,brockwhittaker/zulip,timabbott/zulip,punchagan/zulip,Galexrt/zulip,amanharitsh123/zulip,rht/zulip,vaidap/zulip,jackrzhang/zulip,tommyip/zulip,verma-varsha/zulip,kou/zulip,brainwane/zulip,vabs22/zulip,shubhamdhama/zulip,amanharitsh123/zulip,kou/zulip,shubhamdhama/zulip,kou/zulip,amanharitsh123/zulip,tommyip/zulip,mahim97/zulip,kou/zulip,Galexrt/zulip,punchagan/zulip,rht/zulip,kou/zulip,brainwane/zulip,jackrzhang/zulip,tommyip/zulip,mahim97/zulip,vabs22/zulip,jrowan/zulip,rht/zulip,synicalsyntax/zulip,hackerkid/zulip,punchagan/zulip,zulip/zulip,mahim97/zulip,brockwhittaker/zulip,brainwane/zulip,showell/zulip,timabbott/zulip,verma-varsha/zulip,punchagan/zulip,synicalsyntax/zulip,dhcrzf/zulip,Galexrt/zulip,verma-varsha/zulip,showell/zulip,vabs22/zulip,punchagan/zulip,hackerkid/zulip,synicalsyntax/zulip,brockwhittaker/zulip,rishig/zulip,andersk/zulip,dhcrzf/zulip,showell/zulip,synicalsyntax/zulip,amanharitsh123/zulip,shubhamdhama/zulip,hackerkid/zulip,Galexrt/zulip,hackerkid/zulip,eeshangarg/zulip,showell/zulip,dhcrzf/zulip,Galexrt/zulip,vaidap/zulip,jrowan/zulip,vaidap/zulip,shubhamdhama/zulip,jackrzhang/zulip,Galexrt/zulip,vaidap/zulip,Galexrt/zulip,verma-varsha/zulip,zulip/zulip,timabbott/zulip,brainwane/zulip,jackrzhang/zulip,rishig/zulip,zulip/zulip,vabs22/zulip,jrowan/zulip,dhcrzf/zulip,showell/zulip,eeshangarg/zulip,vaidap/zulip,zulip/zulip,kou/zulip,shubhamdhama/zulip,mahim97/zulip,verma-varsha/zulip,andersk/zulip,showell/zulip,vabs22/zulip,brockwhittaker/zulip,rishig/zulip,mahim97/zulip,andersk/zulip,rishig/zulip,jrowan/zulip,timabbott/zulip,rht/zulip,hackerkid/zulip,eeshangarg/zulip,showell/zulip,tommyip/zulip,rht/zulip,timabbott/zulip,timabbott/zulip,jackrzhang/zulip,brainwane/zulip,dhcrzf/zulip,amanharitsh123/zulip,brainwane/zulip,kou/zulip,dhcrzf/zulip,rishig/zulip,synicalsyntax/zulip,synicalsyntax/zulip,shubhamdhama/zulip,amanharitsh123/zulip,jackrzhang/zulip,brainwane/zulip,punchagan/zulip,rishig/zulip,vaidap/zulip,andersk/zulip,tommyip/zulip,tommyip/zulip,hackerkid/zulip,zulip/zulip,eeshangarg/zulip