Support using `actionlint` for linting GitHub actions

[ArBridgeman]

Summary

In the script-languages-container-ci-setup, they use actionlint here. For other checking other workflows, it would be nice if we added this is an official PTB checks.yml job.

https://github.com/marketplace/actions/rhysd-actionlint
https://github.com/rhysd/actionlint/tree/main

• Verify usefulness of this action
• Verify security and maintained nature of it
• Figure out which mechanism would work best -> pre-commit, nox session as we'd want this to be locally used