ci(pre-commit): Enable pre-commit CI and renovate

[hofbi]

Since the rules already prvide a pre-commit config, we should also make sure the checks pass CI and hooks stay up to date.

[fmeum]

@alexeagle

[alexeagle]

I think it looks good, but let's land your bazel-lib usage of it and get a few days usage to verify it behaves how rules authors will want, before we update the template.

[hofbi]

I think it looks good, but let's land your bazel-lib usage of it and get a few days usage to verify it behaves how rules authors will want, before we update the template.

Sounds good. I pushed another commit fixing all pre-commit issues so that we can merge in a few days.