Add pre-commit autoupdate CI job

[afuetterer]

Rationale / Begründung

I propose adding a CI job, that runs using a cron job (once per month like the dependabot?), and updates the pre-commit hooks config. What do you think?

Affected

devs

Minimal functionality

The job should run

pre-commit autoupdate

check, if the .pre-commit-config.yaml changed, if yes, commit it and create a PR.

https://pre-commit.ci/ does this automatically, but I guess we don't need another service involved.

References / Verweise

• https://pre-commit.com/#pre-commit-autoupdate
• https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule

[jochenklar]

Good idea! I would also be fine with the pre-commit service, but I should only create PR to update-dependencies or somethin similar which we then merge into dev-*.

[afuetterer]

I could provide a custom GitHub action for rdmo.

But if you prefer, we can use https://pre-commit.ci/ as well. I have not used it before, but a lot of projects use it, it is from the author of pre-commit itself. They can do the linting for us as well then. They say it is really fast.

See: https://pre-commit.ci/#configuration