ci: fix backmerge credentials (#7876)

Author: mtrezza

.github/workflows/release-automated.yml

@@ -30,7 +30,7 @@ jobs:
       - run: npx semantic-release
         env:
           GH_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
       - name: Determine tag on current commit
         id: tag