[stable/prisma] update chart repo dependency references (#23995)

Signed-off-by: Matt Farina <matt@mattfarina.com>

stable/prisma/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: prisma
-version: 1.2.2
+version: 1.2.3
 appVersion: 1.29.1
 kubeVersion: "^1.8.0-0"
 description: Prisma turns your database into a realtime GraphQL API

stable/prisma/requirements.lock

@@ -1,6 +1,6 @@
 dependencies:
 - name: postgresql
-  repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 0.15.0
-digest: sha256:bbc1e13abc845c3e5cad4c328105a9c50ee5692d73547065ffbf63f15e6fd533
-generated: 2018-08-09T17:19:54.160902267-07:00
+  repository: https://charts.helm.sh/stable
+  version: 0.15.2
+digest: sha256:44b3286405023a09d2213b2aa9c2afc0e59c57ffe5991e5c27117ff3dffa8a6b
+generated: "2020-10-30T11:41:31.254047-04:00"

stable/prisma/requirements.yaml

@@ -1,5 +1,5 @@
 dependencies:
 - name: postgresql
   version: ~0.15.0
-  repository: "https://kubernetes-charts.storage.googleapis.com/"
+  repository: https://charts.helm.sh/stable
   condition: postgresql.enabled