Update python-app.yml

Author: priyagupta108

.github/workflows/python-app.yml

@@ -5,10 +5,11 @@ on: [push, pull_request]
 jobs:
   test:
     runs-on: self-hosted
+    
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5