fix grep

Author: btipling

.github/workflows/ci.yaml

@@ -224,7 +224,7 @@ jobs:
         run: |
           ./baton-slack && \
           baton grants --entitlement="${{ env.CONNECTOR_ENTITLEMENT }}" --output-format=json | \
-          jq --exit-status ".grants[].principal.id.resource == \"${{ env.CONNECTOR_PRINCIPAL }}\""
+          jq --exit-status ".grants[].principal.id.resource == \"${{ env.CONNECTOR_PRINCIPAL }}\"" | grep -q "true"
 
   test-enterprise-roles:
     runs-on: ubuntu-latest