ci: bump actions/setup-python from 6 to 7 in the language-setup group

Bumps the language-setup 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: language-setup
...

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

Author: dependabot[bot]

.github/workflows/ci-from-template.yaml

@@ -17,7 +17,7 @@ jobs:
           ref: ${{ github.head_ref || github.ref }}
           token: ${{ secrets.GITHUB_TOKEN }}
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v7
         with:
           python-version: '3.x'
       - name: Install copier