Process job group first

[thavaahariharangit]

What are you trying to accomplish?

Prioritize processing the job group first.

This approach ensures that the job group runs initially, and during the first run, the handled_dependencies list will be empty.

Anything you want to highlight for special attention from reviewers?

Prior to this PR:

• The first group processing was marking all dependencies as handled.
• This behavior prevented subsequent groups from creating PRs for the same dependencies.

To address this, I have adjusted the implementation so that the job_group runs first.

The CLI was successfully run against the workflow: Workflow Run.

How will you know you've accomplished your goal?

Checklist

• I have run the complete test suite to ensure all tests and linters pass.
• I have thoroughly tested my code changes to ensure they work as expected, including adding additional tests for new functionality.
• I have written clear and descriptive commit messages.
• I have provided a detailed description of the changes in the pull request, including the problem it addresses, how it fixes the problem, and any relevant details about the implementation.
• I have ensured that the code is well-documented and easy to understand.