ci: bump actions/setup-python from 6 to 7

Bumps [actions/setup-python](https://github.com/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
...

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

Author: dependabot[bot]

.github/workflows/package.yaml

@@ -41,7 +41,7 @@ jobs:
             VERSION=$(yq --unwrapScalar .project.version pyproject.toml)
             echo "VERSION=${VERSION}" >> "${GITHUB_ENV}"
           fi
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with:
           python-version: 3
       - name: Install dependencies