Run GitHub releases updater in workflow

Author: hsbt

.github/workflows/bundled_gems.yml

@@ -72,6 +72,7 @@ jobs:
       - name: Maintain updated gems list in NEWS
         run: |
           ruby tool/update-NEWS-gemlist.rb bundled
+          ruby tool/update-NEWS-github-releases.rb --update
         if: ${{ env.UPDATE_ENABLED == 'true' }}
 
       - name: Check diffs