provision: Run apt-get update on catching an error.
provision: Run apt-get update on catching an error.

For broken apt cache, we run the command apt-get update on catching
the error.

rishig/zulip,mahim97/zulip,amanharitsh123/zulip,timabbott/zulip,kou/zulip,synicalsyntax/zulip,Galexrt/zulip,timabbott/zulip,brockwhittaker/zulip,amanharitsh123/zulip,eeshangarg/zulip,dhcrzf/zulip,eeshangarg/zulip,andersk/zulip,hackerkid/zulip,showell/zulip,shubhamdhama/zulip,jackrzhang/zulip,zulip/zulip,brockwhittaker/zulip,brainwane/zulip,rht/zulip,dhcrzf/zulip,tommyip/zulip,hackerkid/zulip,punchagan/zulip,hackerkid/zulip,rishig/zulip,brockwhittaker/zulip,Galexrt/zulip,andersk/zulip,shubhamdhama/zulip,shubhamdhama/zulip,rht/zulip,timabbott/zulip,Galexrt/zulip,dhcrzf/zulip,hackerkid/zulip,shubhamdhama/zulip,rishig/zulip,punchagan/zulip,showell/zulip,Galexrt/zulip,amanharitsh123/zulip,rht/zulip,showell/zulip,brainwane/zulip,eeshangarg/zulip,andersk/zulip,punchagan/zulip,shubhamdhama/zulip,mahim97/zulip,eeshangarg/zulip,punchagan/zulip,andersk/zulip,rht/zulip,zulip/zulip,rht/zulip,kou/zulip,timabbott/zulip,hackerkid/zulip,hackerkid/zulip,brainwane/zulip,shubhamdhama/zulip,showell/zulip,synicalsyntax/zulip,rishig/zulip,rishig/zulip,dhcrzf/zulip,amanharitsh123/zulip,tommyip/zulip,kou/zulip,hackerkid/zulip,Galexrt/zulip,punchagan/zulip,jackrzhang/zulip,rht/zulip,synicalsyntax/zulip,kou/zulip,tommyip/zulip,synicalsyntax/zulip,zulip/zulip,dhcrzf/zulip,zulip/zulip,tommyip/zulip,kou/zulip,brainwane/zulip,brainwane/zulip,tommyip/zulip,synicalsyntax/zulip,brockwhittaker/zulip,brockwhittaker/zulip,timabbott/zulip,dhcrzf/zulip,jackrzhang/zulip,eeshangarg/zulip,showell/zulip,amanharitsh123/zulip,rht/zulip,Galexrt/zulip,kou/zulip,punchagan/zulip,brainwane/zulip,mahim97/zulip,mahim97/zulip,rishig/zulip,zulip/zulip,brainwane/zulip,jackrzhang/zulip,kou/zulip,andersk/zulip,jackrzhang/zulip,eeshangarg/zulip,zulip/zulip,showell/zulip,eeshangarg/zulip,mahim97/zulip,zulip/zulip,mahim97/zulip,andersk/zulip,shubhamdhama/zulip,rishig/zulip,tommyip/zulip,jackrzhang/zulip,timabbott/zulip,synicalsyntax/zulip,brockwhittaker/zulip,showell/zulip,amanharitsh123/zulip,Galexrt/zulip,dhcrzf/zulip,synicalsyntax/zulip,jackrzhang/zulip,andersk/zulip,tommyip/zulip,punchagan/zulip,timabbott/zulip