Merge pull request #234 from alexlebens/renovate/postgres-cluster-3.x

Update Helm release postgres-cluster to v3.8.3

clusters/cl01tl/platform/matrix-synapse/Chart.yaml

@@ -44,7 +44,7 @@ dependencies:
 
   - name: postgres-cluster
     alias: postgres-16-cluster
-    version: 3.8.2
+    version: 3.8.3
     repository: http://alexlebens.github.io/helm-charts
 icon: https://raw.githubusercontent.com/walkxcode/dashboard-icons/main/png/matrix.png
 appVersion: 1.109.0