Bump actions/setup-python from 3 to 4

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]>

.github/workflows/build.yml

@@ -117,7 +117,7 @@ jobs:
         with:
           path: config.cache
           key: ${{ github.job }}-${{ runner.os }}-${{ needs.check_source.outputs.config_hash }}
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v4
       - name: Install Dependencies
         run: sudo ./.github/workflows/posix-deps-apt.sh
       - name: Add ccache to PATH