Update python-app.yml

run also on pushes to issue branches

.github/workflows/python-app.yml

@@ -5,7 +5,7 @@ name: Python application
 
 on:
   push:
-    branches: [ "main", "dev-*" ]
+    branches: [ "main", "dev-*", "issue*" ]
     paths-ignore:
     - '**.md' # Do no build on *.md changes
     - '**.yml' # Do no build on *.yml changes