Feature request: pre-commit hook for CI workflow files

[hombit]

Debugging GitHub actions is annoying, but hopefully we may help with it. It would be useful to have a pre-commit hook which would validate GitHub action files before we even push them. I've found this tool, but I'm not sure if it the only/best one:
https://github.com/mpalmer/action-validator

May be partially solved by implementing #382 instead

[camposandro]

There's also the check-github-workflows hook suggested by pre-commit's development team. It also seems to download GitHub workflows schema to perform this type of validation:

python-project-template/python-project-template/.pre-commit-config.yaml.jinja

Lines 40 to 45 in b2bd2a0

	# Verify that GitHub workflows are well formed
	- repo: https://github.com/python-jsonschema/check-jsonschema
	rev: 0.28.0
	hooks:
	- id: check-github-workflows
	args: ["--verbose"]

[hombit]

Great, thank you!

[hombit]

Sorry, I shouldn't close it