fix(actions): changed matrix strategy

.github/workflows/test_cases.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ 3.9, 3.8, 3.7, 3.6 ]
+        python-version: ["pypy3.9", "pypy3.10", "3.9", "3.10", "3.11", "3.12"]
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it