linters are not run after pre-commit autoupdate

[keewis]

#4906 added a autoupdate CI for the pre-commit hooks. However, once the hook versions are updated, the pre-commit CI is not run so potential errors will only be visible after merging the PR.

The documentation of create-pr-action states that that's because GITHUB_TOKEN does not allow it to trigger those workflows so we'd have to create a personal access token, or run pre-commit run --all-files immediately after the autoupdate.

The second option is definitely easier but would miss the separate mypy job (not sure how much of an issue that is).