switch to tls-secret

Author: pdabelf5

tests/data/virtual-server-grpc/standard/virtual-server.yaml

@@ -5,7 +5,7 @@ metadata:
 spec:
   host: virtual-server.example.com
   tls:
-    secret: virtual-server-tls-grpc-secret
+    secret: tls-secret
   upstreams:
   - name: grpc1
     service: grpc1-svc