fix: Switch to bitnamilegacy Postgres repo in Helm, add ingress labels (#1368)

Closes #1362

charts/planka/values.yaml

@@ -68,6 +68,7 @@ service:
 ingress:
   enabled: false
   className: ""
+  labels: {}
   annotations: {}
     # kubernetes.io/ingress.class: nginx
     # kubernetes.io/tls-acme: "true"
@@ -108,6 +109,11 @@ tolerations: []
 affinity: {}
 
 postgresql:
+  global:
+    security:
+      allowInsecureImages: true
+  image:
+    repository: bitnamilegacy/postgresql
   enabled: true
   auth:
     database: planka