Bump actions/setup-python from 5.3.0 to 5.4.0 in the actions group

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


Updates `actions/setup-python` from 5.3.0 to 5.4.0
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5.3.0...v5.4.0)

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

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

.github/workflows/ci_helm_tests.yaml

@@ -16,7 +16,7 @@ jobs:
         with:
           version: v3.9.2
 
-      - uses: actions/setup-python@v5.3.0
+      - uses: actions/setup-python@v5.4.0
         with:
           python-version: "3.10"
 

.github/workflows/ci_servicex.yaml

@@ -43,7 +43,7 @@ jobs:
         uses: actions/checkout@v4.2.2
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5.3.0
+        uses: actions/setup-python@v5.4.0
         with:
           python-version: ${{ matrix.python-version }}
         if: ${{ matrix.app.test_required }}