chore: Remove unneeded pip install

[zkoppert]

python-setup takes care of the pip install and upgrade. This should also improve our OSSF score

Pull Request

This pull request includes a small update to the GitHub Actions workflow file for setting up the Python environment. The change updates the version of the setup-python action to ensure compatibility with the latest features and improvements.

Proposed Changes

Readiness Checklist

Author/Contributor

• If documentation is needed for this change, has that been included in this pull request
• run make lint and fix any issues that you have introduced
• run make test and ensure you have test coverage for the lines you are introducing
• If publishing new data to the public (scorecards, security scan results, code quality results, live dashboards, etc.), please request review from @jeffrey-luszcz

Reviewer

• Label as either fix, documentation, enhancement, infrastructure, maintenance, or breaking