Bump actions/setup-python from 6 to 7 (#175)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 6 to 7.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/changelog-guard.yml

@@ -19,7 +19,7 @@ jobs:
           fetch-depth: 0
           fetch-tags: true
 
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.12"
 

.github/workflows/deploy.yaml

@@ -41,7 +41,7 @@ jobs:
           fetch-depth: 0
           fetch-tags: true
 
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.12"