Bump actions/setup-python from 6 to 7 (#773)

Bumps the actions group with 1 update: [actions/setup-python](https://github.com/actions/setup-python).


Updates `actions/setup-python` from 6 to 7
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v6...v7)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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Author: dependabot[bot]

.github/workflows/check.yml

@@ -21,7 +21,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v7
         with:
           python-version: ${{ matrix.python-version }}
       - name: Check configuration