testing python container

Author: karlnyr

.github/workflows/run_tests.yml

@@ -9,10 +9,10 @@ env:
 
 jobs:
   build-linux:
-    runs-on: ubuntu-20.04
-    strategy:
-      max-parallel: 5
-
+    runs-on: ubuntu-latest
+    container:
+      image: python:3.6-slim
+  
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python 3.6