Bump deadsnakes/action from 2.1.1 to 3.1.0

Bumps [deadsnakes/action](https://github.com/deadsnakes/action) from 2.1.1 to 3.1.0.
- [Release notes](https://github.com/deadsnakes/action/releases)
- [Commits](deadsnakes/action@v2.1.1...v3.1.0)

---
updated-dependencies:
- dependency-name: deadsnakes/action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/test.yml

@@ -37,7 +37,7 @@ jobs:
         with:
           python-version: ${{ matrix.python }}
       - name: Set up Python ${{ matrix.python }} (deadsnakes)
-        uses: deadsnakes/action@v2.1.1
+        uses: deadsnakes/action@v3.1.0
         if: "endsWith(matrix.python, '-dev')"
         with:
           python-version: ${{ matrix.python }}