ci: bump actions/setup-python from 5.1.0 to 5.1.1

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.1.0 to 5.1.1.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5.1.0...v5.1.1)

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

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

.github/workflows/tests.yml

@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
         with:
           python-version: '3.7'