add image registry param to values.yaml in kafka-ui chart (#1249)

charts/kafka-ui/values.yaml

@@ -1,7 +1,8 @@
 replicaCount: 1
 
 image:
-  repository: provectuslabs/kafka-ui
+  registry: provectuslabs
+  repository: kafka-ui
   pullPolicy: IfNotPresent
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"