Pin django-ansible-base and add cronjob for updating django-ansible-base when new version releases

[chrismeyersfsu]

SUMMARY

Check django-ansible-base upstream for releases. If release does not match current pinned version in requirements/requirements_git.txt then make it match and open a PR with the match.

ISSUE TYPE

• Bug, Docs Fix or other nominal change

COMPONENT NAME

• API

AWX VERSION

devel

ADDITIONAL INFORMATION

Done:

• Pin DAB in requirements_git.txt
• Verify pinning DAB via requirements_git.txt works
• Detect DAB version change via github API
• Construct PR w/ DAB version pin changes
• Submit PR to AWX
• Bonus: Do not submit PR if there is already an open PR for the DAB release version
• Run periodically via cron in github actions

Thoughts:
I wonder when/if unwanted PRs would be opened.

Run Init

• Workflow ran and determined pinned version does not match upstream release
• Branch bump-django-ansible-base created with upstream version
• PR created

Run Again

• Workflow ran via a force push with no changes.
• Logs indicate that the PR workflow github action we are using sees that the PR hasn't changed and does nothing.

So it would seem it roughly behaves how we want it to. We do NOT want it to open a new PR every time the cron job runs.