[stable/janusgraph] update chart repo dependency references (#23990)

Signed-off-by: Scott Rigby <scott@r6by.com>

stable/janusgraph/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "1.0"
 description: Open source, scalable graph database.
 name: janusgraph
-version: 0.2.3
+version: 0.2.4
 home: http://janusgraph.org
 icon: https://raw.githubusercontent.com/JanusGraph/janusgraph/master/janusgraph.png
 sources:

stable/janusgraph/requirements.yaml

@@ -1,5 +1,5 @@
 dependencies:
   - name: elasticsearch
     version: 0.4.7
-    repository: https://kubernetes-charts-incubator.storage.googleapis.com
+    repository: https://charts.helm.sh/incubator
     condition: elasticsearch.deploy