Integrate a GHA workflow running ansible-test

[webknjaz]

Description

(DISCLAIMER: this is a drive-by contribution, feel free to adapt it, I'm leaving the "allow maintainers to edit" checkbox on)

The patch merely wires up ansible-test sanity w/ GHA. Thought you might benefit from the official linter running on a public CI.

This is derived from the ansible community collection skeleton/repo template
project that I contribute to: https://github.com/ansible-collections/collection_template.
It also relies on a GitHub Action for invoking ansible-test that I maintain in the Ansible Community GH org.

Type of change

• Testing / Maintenance

How Has This Been Tested?

CI

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules
• Any variable changes have been validated to be backwards compatible

[webknjaz]

NOTE: this job is designed to be used in branch protection or as a gate for other post-testing jobs.

[cla-assistant]

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