ci(f5-cla): add GH action workflow for F5 CLA integration

[TasoOneAsia]

Proposed changes

An updated version of #661 that includes a GitHub action workflow integrating the F5 CLA into the typical GitHub pull-request flow for individual contributors.

As part of this workflow's configuration, the following usernames were marked as F5 maintainers:

• lucacome
• pleshakov

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• [x] I have read the CONTRIBUTING guide
• [x] I have proven my fix is effective or that my feature works
• [x] I have checked that all unit tests pass after adding my changes
• [x] I have ensured the README is up to date
• [x] I have rebased my branch onto main
• [x] I will ensure my PR is targeting the main branch and pulling from my branch on my own fork