fix(ci): matrix for old python versions on macos

Signed-off-by: Frost Ming <me@frostming.com>

.github/workflows/ci.yml

@@ -21,14 +21,25 @@ jobs:
     strategy:
       matrix:
         python-version: [3.8, 3.9, "3.10", "3.11", 3.12]
-        os: [ubuntu-latest, macOS-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        exclude:
+          - python-version: 3.8
+            os: macos-latest
+          - python-version: 3.9
+            os: macos-latest
+        include:
+          - python-version: 3.8
+            os: macos-13
+          - python-version: 3.9
+            os: macos-13
 
     steps:
       - uses: actions/checkout@v4
       - name: Set up PDM
-        uses: pdm-project/setup-pdm@v3
+        uses: pdm-project/setup-pdm@v4
         with:
           python-version: ${{ matrix.python-version }}
+          cache: true
 
       - name: Install dependencies
         run: pip install nox