feat: match django-cms core test matrix

Author: vinitkumar

.github/workflows/codecov.yml

@@ -16,26 +16,34 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]  # latest release minus two
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]  # latest release minus two
         requirements-file: [
             dj42_cms311.txt,
             dj42_cms41.txt,
             dj50_cms41.txt,
             dj51_cms41.txt,
             dj52_cms50.txt,
+            dj60_cms50.txt,
         ]
         os: [
             ubuntu-latest,
         ]
         exclude:
-          - python-version: "3.9"
+          # Python 3.14 only works with Django 5.2+
+          - python-version: "3.14"
+            requirements-file: dj42_cms311.txt
+          - python-version: "3.14"
+            requirements-file: dj42_cms41.txt
+          - python-version: "3.14"
             requirements-file: dj50_cms41.txt
-          - python-version: "3.9"
+          - python-version: "3.14"
             requirements-file: dj51_cms41.txt
-          - python-version: "3.9"
-            requirements-file: dj52_cms50.txt
+          # Python 3.10 and 3.11 only supported until Django 5.2
           - python-version: "3.10"
-            requirements-file: dj52_cms50.txt
+            requirements-file: dj60_cms50.txt
+          - python-version: "3.11"
+            requirements-file: dj60_cms50.txt
+          # Python 3.12 and 3.13 don't support Django 4.2 with CMS 3.11
           - python-version: "3.12"
             requirements-file: dj42_cms311.txt
           - python-version: "3.13"
@@ -50,10 +58,12 @@ jobs:
       uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pip'
     - name: Install dependencies
       run: |
         sudo apt install libcairo2-dev pkg-config python3-dev
-        pip install -U -r tests/requirements/${{ matrix.requirements-file }}
+        python -m pip install --upgrade pip uv
+        uv pip install --system -r tests/requirements/${{ matrix.requirements-file }}
     - name: Run coverage
       run: |
         coverage run -m pytest