[helm] Update postgresql chart to 14.2.3

.gitignore

@@ -77,4 +77,7 @@ media_store/
 build
 
 # golang workspaces
-go.work*
+go.work*
+
+# helm chart
+helm/dendrite/charts/

helm/dendrite/Chart.yaml

@@ -1,9 +1,10 @@
 apiVersion: v2
 name: dendrite
-version: "0.13.8"
+version: "0.14.0"
 appVersion: "0.13.6"
 description: Dendrite Matrix Homeserver
 type: application
+icon: https://avatars.githubusercontent.com/u/8418310?s=48&v=4
 keywords:
   - matrix
   - chat
@@ -13,7 +14,7 @@ home: https://github.com/matrix-org/dendrite
 sources:
   - https://github.com/matrix-org/dendrite
 dependencies:
-- name: postgresql
-  version: 12.1.7
-  repository: https://charts.bitnami.com/bitnami
-  condition: postgresql.enabled
+  - name: postgresql
+    version: 14.2.3
+    repository: https://charts.bitnami.com/bitnami
+    condition: postgresql.enabled