Bump EndBug/add-and-commit from 4 to 9

Bumps [EndBug/add-and-commit](https://github.com/endbug/add-and-commit) from 4 to 9.
- [Release notes](https://github.com/endbug/add-and-commit/releases)
- [Commits](https://github.com/endbug/add-and-commit/compare/v4...v9)

---
updated-dependencies:
- dependency-name: EndBug/add-and-commit
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
           version_number=${tag#?}
           poetry version $version_number
       - name: Commit changes
-        uses: EndBug/add-and-commit@v4
+        uses: EndBug/add-and-commit@v9
         with:
           message: "Bump version to ${{ github.event.release.tag_name }}"
           add: "pyproject.toml"