Update lockfile.yml

.github/workflows/lockfile.yml

@@ -18,5 +18,7 @@ jobs:
       - uses: ./.github/actions/yarn-install
       - name: Commit new lockfile if updated
         run: |
+          git config --global user.email "${GITHUB_ACTOR}"
+          git config --global user.name "${GITHUB_ACTOR}@users.noreply.github.com"
           git commit -am "Update yarn.lock"
           git push