Enable pre-commit for repo

[droctothorpe]

What you would like to be added?

Implement pre-commit for this repo. Similar to kubeflow/katib#2242 (comment). Integrate it with CI.

I plan to tackle this in a little bit.

Why is this needed?

It improves the code quality and consistency and saves reviewers time.

Love this feature?

Give it a 👍 We prioritize the features with most 👍

[andreyvelich]

/good-first-issue
/area engprod

[google-oss-prow]

@andreyvelich:
This request has been marked as suitable for new contributors.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-good-first-issue command.

In response to this:

/good-first-issue
/area engprod

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[SpiffyEight77]

I would like to work on this issue.
/assign

[terrytangyuan]

Fixed via #2184