fix: make tag and release creation idempotent on workflow retries

Use git tag -f and git push -f for tags, and delete any existing release
before creating to handle partial failure retries gracefully.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jwaldrip

.github/workflows/bump-plugin-version.yml

@@ -140,8 +140,8 @@ jobs:
         if: steps.commit.outputs.released == 'true'
         run: |
           TAG="v${{ steps.bump-version.outputs.new_version }}"
-          git tag "$TAG"
-          git push origin "$TAG"
+          git tag -f "$TAG"
+          git push -f origin "$TAG"
 
       - name: Package plugin
         if: steps.commit.outputs.released == 'true'
@@ -174,6 +174,8 @@ jobs:
         run: |
           VERSION="${{ steps.bump-version.outputs.new_version }}"
           TAG="v${VERSION}"
+          # Delete existing release on retry to ensure idempotency
+          gh release delete "$TAG" -y 2>/dev/null || true
           gh release create "$TAG" \
             --title "$TAG" \
             --notes-file /tmp/release-notes.md \