Add Linter and Formatter for Python Files in CI/CD

[andreyvelich]

As we discussed here: #1907 (comment), we need to add script to our CI/CD that uses black and flake8 to verify Python files.

Similar to our checks for Go: https://github.com/kubeflow/training-operator/blob/master/.github/workflows/test-go.yaml#L32.

/help

[google-oss-prow]

@andreyvelich:
This request has been marked as needing help from a contributor.

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-help command.

In response to this:

As we discussed here: #1907 (comment), we need to add script to our CI/CD that uses black and flake8 to verify Python files.

Similar to our checks for Go: https://github.com/kubeflow/training-operator/blob/master/.github/workflows/test-go.yaml#L32.

/help
/good first issue

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/test-infra repository.

[andreyvelich]

/good-first-issue

[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

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/test-infra repository.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[tenzen-y]

/lifecycle frozen

[sandipanpanda]

I want to work on this.
/assign