AETHER-1902 Allow arbitary annotations for UPF service definition

Change-Id: I3e327eb4f53f1a3fece3edfaac0998810d633664
diff --git a/omec/omec-user-plane/values.yaml b/omec/omec-user-plane/values.yaml
index 467eccf..ec74188 100644
--- a/omec/omec-user-plane/values.yaml
+++ b/omec/omec-user-plane/values.yaml
@@ -88,6 +88,7 @@
 
 service:
   type: ClusterIP
+  #annotations:
 
 servicemonitor:
   enabled: false