Test multiple Python versions

.github/workflows/python-test.yml

@@ -13,13 +13,18 @@ jobs:
   test:
 
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.10", "3.12"]
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python 3.10
+    - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
-        python-version: "3.10"
+        python-version: ${{ matrix.python-version }}
+    - name: Display Python version
+      run: python -c "import sys; print(sys.version)"
     - name: Install Python dependencies
       uses: py-actions/py-dependency-install@v4
     - name: Lint with flake8