Update test_pypi_publish.yml for branch main

Author: azarz

.github/workflows/test_pypi_publish.yml

@@ -3,9 +3,9 @@ name: Publish Python 🐍 distributions 📦 to TestPyPI
 on: 
   # Runs on pushes targeting the default branch
   push:
-    branches: ["develop"]
+    branches: ["main"]
   pull_request:
-    branches: [ "develop" ]
+    branches: [ "main" ]
 
 jobs:
   build-n-publish: