updated python-test GitHub action; actions moved to v3

Author: stuchalk

.github/workflows/python-test-publish.yml

@@ -26,11 +26,11 @@ jobs:
         os: [ubuntu-latest]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
-        python-version: '3.10'
+        python-version: ['3.7', '3.8', '3.9', '3.10']
 
     - name: Install dependencies
       run: |