Update benchmarks.yml

Author: juliagmt-google

.github/workflows/benchmarks.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Wait For Connection
         uses: google-ml-infra/actions/ci_connection@main
         with:
-          halt-dispatch-input: ${{ inputs.halt-for-connection }
+          halt-dispatch-input: ${{ inputs.halt-for-connection }}
 
       - name: Configure XLA
         working-directory: xla