Update python-app.yml

Author: priyagupta108

.github/workflows/python-app.yml

@@ -3,9 +3,8 @@ name: Python application
 
 on:
   push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
+    branches: [ issue-815 ]
+
 
 jobs:
   build:
@@ -27,4 +26,4 @@ jobs:
       run: pip cache dir
 
     # - name: Install placeholder package
-    #   run: pip install isort
+    #   run: pip install isort