Bump actions/setup-python from v5.6.0 to v6.2.0

The v5.x line runs on Node 20, which now emits a deprecation warning
in workflow logs. v6.0.0 upgraded the action's runtime to Node 24.

Note: setup-python v6+ requires GitHub Actions runner v2.327.1 or
later (per upstream release notes).

Author: adisivaprasad

action.yml

@@ -120,7 +120,7 @@ runs:
     if: steps.pre-installed-python.outputs.python-path == ''
     id: new-python
     # yamllint disable-line rule:line-length
-    uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5.6.0
+    uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
     with:
       python-version: 3.x
   - name: Create Docker container action