fix: simplify release workflow to only trigger on tags

Remove manual tag extraction and use auto-generated release notes.
Only trigger on push to tags, not manual dispatch.

Author: nelaturuharsha

.github/workflows/publish.yml

@@ -4,7 +4,6 @@ on:
   push:
     tags:
       - 'v*.*.*'
-  workflow_dispatch:
 
 jobs:
   create-release:
@@ -22,21 +21,10 @@ jobs:
       - name: Build package
         run: uv build
 
-      - name: Generate release notes
-        id: release_notes
-        run: |
-          TAG=${GITHUB_REF#refs/tags/}
-          echo "tag_name=$TAG" >> $GITHUB_OUTPUT
-          echo "## Changes in $TAG" > release_notes.txt
-          echo "" >> release_notes.txt
-          echo "Built from commit: ${{ github.sha }}" >> release_notes.txt
-
       - name: Create GitHub Release
         uses: softprops/action-gh-release@v2
         with:
-          tag_name: ${{ steps.release_notes.outputs.tag_name }}
-          name: Release ${{ steps.release_notes.outputs.tag_name }}
-          body_path: release_notes.txt
+          generate_release_notes: true
           files: |
             dist/*.whl
             dist/*.tar.gz