fix(helm): create service account only once in services

Author: aarthy-dk

deploy/charts/observability-services/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: dataops-observability-services
 type: application
 appVersion: "2.x.x"
-version: "2.0.1"
+version: "2.0.2"
 
 dependencies:
   - name: kafka

deploy/charts/observability-services/values.yaml

@@ -28,6 +28,7 @@ mysql:
     tag: 8.0.36-debian-12-r9
   fullnameOverride: mysql
   serviceAccount:
+    create: false
     name: datakitchen-observability
   auth:
     username: observability