build: fed compatibility test action should fail if any test failed (ExpediaGroup#1637)

See: https://github.com/marketplace/actions/apollo-federation-subgraph-compatibility

Author: dariuszkuc

.github/workflows/federation-compatibility.yml

@@ -39,3 +39,5 @@ jobs:
           schema: 'integration/federation-compatibility/build/schema.graphql'
           debug: true
           token: ${{ secrets.token }}
+          failOnWarning: true
+          failOnRequired: true