test: check all python versions

.github/workflows/run.yml

@@ -11,16 +11,22 @@ on:
 jobs:
   run:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.10', '3.11', '3.12']
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python 3.12
+
+    - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
-        python-version: 3.12
+        python-version: ${{ matrix.python-version }}
+
     - name: Install package
       run: |
         python -m pip install --upgrade pip
         python -m pip install .
+
     - name: Run imgsync in download mode only
       run: glance-imgsync --download-only sync