chore(deps): bump actions/setup-python from 3 to 4 (MystenLabs/narwha…

…l#362)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 3 to 4.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

narwhal/.github/workflows/python.yml

@@ -21,7 +21,7 @@ jobs:
               - 'benchmark/**'
       - name: Set up Python 3.8
         if: steps.filter.outputs.benchmark == 'true'
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: 3.8
       - name: Install flake8, pip-audit