test default service name

Author: Kerkesni

.github/workflows/end2end.yaml

@@ -78,7 +78,7 @@ env:
   ENABLE_RING_TESTS: "false"
   RING_S3C_ACCESS_KEY: accessKey1
   RING_S3C_SECRET_KEY: verySecretKey1
-  RING_S3C_ENDPOINT: http://s3c.local:8000
+  RING_S3C_ENDPOINT: http://s3c-cloudserver.default.svc.cluster.local:8000
   RING_S3C_BACKEND_SOURCE_LOCATION: rings3cbackendingestion
   RING_S3C_INGESTION_SRC_BUCKET_NAME: ingestion-test-src-bucket-${{ github.run_id }}
   # CTST end2end tests