Update python-tests.yml

Author: shawaj

.github/workflows/python-tests.yml

@@ -4,12 +4,12 @@ on: [push, pull_request]
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.9
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
     - name: Run PyTest