Re: [PATCH 0/2] ci: avoid ugly "failure" annotation in the GitHub workflow

"Johannes Schindelin via GitGitGadget" [off-list ref]
writes:

Whenever the GitHub workflow runs in a fork that does not contain the
special-purpose ci-config branch, a big fat failure annotation greets the
casual reader. See e.g. 
https://github.com/gitgitgadget/git/actions/runs/233438295

This is caused by the (non-fatal) failure to clone said branch. Let's avoid
that. It's distracting.

Thanks.  Anything that reduces the CI noise is very much welcomed.