run tests with several Python versions

Author: prohde

.github/workflows/test.yml

@@ -14,6 +14,10 @@ jobs:
 
     timeout-minutes: 10
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ '3.8', '3.9', '3.10', '3.11' ]
 
     steps:
     - uses: actions/checkout@v3
@@ -28,7 +32,7 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
-        python-version: '3.8'
+        python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip