Publish on tags and add write permissions

Author: samwelkanda

.github/workflows/publish.yml

@@ -2,10 +2,12 @@ name: Publish package to PyPI and create release
 
 on:
   push:
-    branches: [main]
     tags:
       - "v*" # Push events to matching v*, i.e. v1.0, v20.15.10
 
+permissions:
+  contents: write
+
 jobs:
   build:
     uses: ./.github/workflows/build.yml