Update prerelease workflow

Author: mikechabot

.github/workflows/publish-package-prerelease.yml

@@ -47,13 +47,6 @@ jobs:
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 
-      # See https://github.com/ad-m/github-push-action
-      - name: Push changes
-        uses: ad-m/github-push-action@master
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          branch: ${{ github.ref }}
-
   publish-github:
     needs: publish-npm
     runs-on: ubuntu-latest