fix: Re-enable CI checks on release branches (#27390)

(cherry picked from commit a54a24e3b5)

.github/workflows/superset-python-unittest.yml

@@ -4,7 +4,8 @@ name: Python-Unit
 on:
   push:
     branches:
-      - 'master'
+      - "master"
+      - "[0-9].[0-9]"
     paths:
       - "superset/**"
   pull_request:
@@ -43,9 +44,9 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-          cache: 'pip'
-          cache-dependency-path: 'requirements/testing.txt'
-# TODO: separated requirements.txt file just for unit tests
+          cache: "pip"
+          cache-dependency-path: "requirements/testing.txt"
+      # TODO: separated requirements.txt file just for unit tests
       - name: Install dependencies
         if: steps.check.outcome == 'failure'
         uses: ./.github/actions/cached-dependencies