Bump actions/setup-python from 5.4.0 to 6.3.0

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.4.0 to 6.3.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v5.4.0...v6.3.0)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: 6.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pull_request.yml

@@ -90,7 +90,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
-        uses: actions/setup-python@v5.4.0
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
       - name: Install requirements