bump core repo tags to 71b7d56 (#612)

diff --git a/helm/openwhisk/Chart.yaml b/helm/openwhisk/Chart.yaml
index 5181ffa..bfaaf03 100644
--- a/helm/openwhisk/Chart.yaml
+++ b/helm/openwhisk/Chart.yaml
@@ -18,7 +18,7 @@
 apiVersion: v2
 type: application
 name: openwhisk
-version: 0.2.3
+version: 0.2.4
 home: https://openwhisk.apache.org
 description: Apache OpenWhisk is an open source serverless cloud platform
 icon: https://raw.githubusercontent.com/apache/openwhisk/682eb5b62ee6ba8017ab54226c2ace3637f4f1ec/docs/images/whisk_icon_full-color_with_tm_64x64-300dpi.png
diff --git a/helm/openwhisk/values.yaml b/helm/openwhisk/values.yaml
index 23c1bcd..7f2b1bc 100644
--- a/helm/openwhisk/values.yaml
+++ b/helm/openwhisk/values.yaml
@@ -129,9 +129,9 @@
     includeSystemTests: false
   versions:
     openwhisk:
-      buildDate: "2020-05-10-08:28:59Z"
-      buildNo: "20200510a"
-      gitTag: "18bbac5bfa12f852f016536960d9b29a5c0198d9"
+      buildDate: "2020-06-17-15:21:13Z"
+      buildNo: "20200617a"
+      gitTag: "71b7d564ff60bf6e89be5410ffcf59f785d17a4a"
     openwhiskCli:
       tag: "1.0.0"
     openwhiskCatalog:
@@ -154,7 +154,7 @@
 # Images used to run auxillary tasks/jobs
 utility:
   imageName: "openwhisk/ow-utils"
-  imageTag: "18bbac5"
+  imageTag: "71b7d56"
   imagePullPolicy: "IfNotPresent"
 
 # Docker registry
@@ -238,7 +238,7 @@
 # Controller configurations
 controller:
   imageName: "openwhisk/controller"
-  imageTag: "18bbac5"
+  imageTag: "71b7d56"
   imagePullPolicy: "IfNotPresent"
   replicaCount: 1
   restartPolicy: "Always"
@@ -250,7 +250,7 @@
 # Invoker configurations
 invoker:
   imageName: "openwhisk/invoker"
-  imageTag: "18bbac5"
+  imageTag: "71b7d56"
   imagePullPolicy: "IfNotPresent"
   restartPolicy: "Always"
   port: 8080
@@ -303,7 +303,7 @@
 # User-events configuration
 user_events:
   imageName: "openwhisk/user-events"
-  imageTag: "18bbac5"
+  imageTag: "71b7d56"
   imagePullPolicy: "IfNotPresent"
   replicaCount: 1
   restartPolicy: "Always"