GitHub Actions troubles

[prabhu]

How are other projects dealing with GitHub Actions based CI? On a regular basis, some percentage of the workflow jobs, especially those involving docker, always fail on the first run. Simply clicking "Re-run failed jobs" makes them work! I am seeing failures involving even the checkout step, so confident it is not all user errors. After GitHub, dotnet 7 docker, followed by SLE image builds have the lowest chance of success in attempt 1.

In terms of time, arm64 image builds take significant amount of time over qemu which is tracked separately as #1601 and #1602.