Update sync-release-version.yml

Author: jackton1

.github/workflows/sync-release-version.yml

@@ -18,7 +18,6 @@ jobs:
             README.md
       - name: Update CHANGELOG.md
         run: |
-          gem install github_changelog_generator 
           github_changelog_generator -u ${{ github.repository_owner }} -p verify-changed-files
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v3