Build: use ubuntu-20.04
image for setup VCS step
#8930
Merged
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We were always using
readthedocs/build:latest
to run all the VCS steps (e.g.git clone
). That image had an oldca-certificates
Ubuntu package that doesnot contains the newer Lets Encrypt certificate and because of that many git
command failed.
Now, we had rebuilt the
ubuntu-20.04
image which includes a newer version ofthis package and we are defining this image to be used by default in the setup
VCS step. The main goal is to avoid calling
apt-get install ca-certificate
oneach build and reduce this overhead.
Closes #8555