CI: The `Test with nox` (`nox-all`) job is skipped when a matrix job fails

[llucax]

What happened?

Since protection rules are set to require the "virtual" job Test with nox (nox-all), when it is skipped, the protection rule doesn't prevent the PR to be merged, so the protection rule is effectively not working at the moment.

What did you expect instead?

For a PR to not be merged if any Test with nox matrix job fails.

Affected version(s)

No response

Affected part(s)

Build script, CI, dependencies, etc. (part:tooling)

Extra information

This is fixed upstream in repo-config.

This job:

https://github.com/frequenz-floss/frequenz-client-dispatch-python/blob/ff88fd9a952eeebc949958d9c0c070acbf51d885/.github/workflows/ci.yaml#L87C3-L94

Needs to be replaced with:

https://github.com/frequenz-floss/frequenz-repo-config-python/blob/6528215e587fcec19dff05269bcae669a1ef44c2/cookiecutter/%7B%7Bcookiecutter.github_repo_name%7D%7D/.github/workflows/ci.yaml#L123-L138

Actually the same is probably true for other -all jobs, like nox-cross-arch-all.

I think it might be best to re-generate the ci.yaml file completely if it got too out of sync.

[llucax]

Setting to priority high because I noticed the default branch is broken because of this issue. The isort failure is in the base branch.

[Marenz]

#138