Publish package for agent

[RRashmit]

Proposed changes

With this change a package will be published every time a commit is merged in the v3 branch.

The value of the build number is dynamic which increments each time the workflow is run.

GITHUB_RUN_NUMBER : It's part of the default environment variables that GitHub sets are available to every step in a workflow. A unique number for each run of a particular workflow in a repository. This number begins at 1 for the workflow's first run, and increments with each new run. This number does not change if you re-run the workflow run. For example, 3.

https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/store-information-in-variables

Checklist

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

• I have read the CONTRIBUTING document
• I have run make install-tools and have attached any dependency changes to this pull request
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• If applicable, I have updated any relevant documentation (README.md)
• If applicable, I have tested my cross-platform changes on Ubuntu 22, Redhat 8, SUSE 15 and FreeBSD 13

[github-actions]

✅ All required contributors have signed the F5 CLA for this PR. Thank you!
_{Posted by the CLA Assistant Lite bot.}

[RRashmit]

I have hereby read the F5 CLA and agree to its terms