update helm chart version ref to this release

Jeff McCormick · Jeff McCormick · commit 94940a03b34d · 2018-01-12T09:03:17.000-06:00
diff --git a/chart/postgres-operator/values.yaml b/chart/postgres-operator/values.yaml
@@ -5,7 +5,7 @@ replicaCount: 1
 
 image:
   repository: crunchydata/postgres-operator
-  tag: centos7-2.3
+  tag: centos7-2.4
   pullPolicy: IfNotPresent
 
 env:
