update pypi workflow

.github/workflows/publish-pypi.yml

@@ -3,12 +3,9 @@ name: Publish PyPI package
 on:
   # The workflow runs on each push / PR but only allow upload
   # PyPI when tagged
-  push:
-    branches:
-      - master
-  pull_request:
-    branches:
-      - master
+  release:
+    types:
+      - created
   workflow_dispatch:
 
 jobs:
@@ -52,4 +49,4 @@ jobs:
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         packages-dir: dist/
-      if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+      if: github.event.release.draft == false