OZG-6499: Apply Url Recommendation with dns-Prefix in approach to fix DNS issue

src/main/helm/templates/_helpers.tpl

@@ -50,7 +50,7 @@ app.kubernetes.io/namespace: {{ include "app.namespace" . }}
 {{- end -}}
 
 {{- define "app.grpc_client_vorgang_manager_address" -}}
-{{ printf "%s.%s:9090" ( coalesce .Values.vorgangManagerName "vorgang-manager" ) .Release.Namespace | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{ printf "dns:///%s.%s:9090" ( coalesce .Values.vorgangManagerName "vorgang-manager" ) .Release.Namespace | replace "+" "_" | trunc 63 | trimSuffix "-" }}
 {{- end -}}
 
 {{- define "app.grpc_client_user-manager_address" -}}