Job fails when git fails to fetch from github

[roberth]

Description

Git connections to GitHub have become unreliable as of late.

See upstream Nix issue

• fetchGit transient failure not retried, Empty reply from server NixOS/nix#9153

Would fix in Nix, but the git fetcher is already being worked on.
Could be retried in agent itself perhaps.

To Reproduce

-

Expected behavior

Retry.

Logs

Various symptoms:

fatal: unable to access 'https://github.com/...': Empty reply from server

fatal: unable to access 'https://github.com/...': Recv failure: Connection reset by peer

error: RPC failed; curl 55 Failed sending data to the peer
fatal: expected flush after ref listing

Platform / Version

All versions; most noticable when using flakes.