misc: updated values file imagePullPolicy to match what is in deployment.yaml (#4546)

***NO_CI***

dev/helm/values.yaml

@@ -6,7 +6,7 @@ replicaCount: 1
 
 image:
   repository: requarks/wiki
-  pullPolicy: IfNotPresent
+  imagePullPolicy: IfNotPresent
 
 imagePullSecrets: []
 nameOverride: ""