chore(deps): update helm release mailu to v2.6.3

manifests/artemis/argocd/kustomization.yaml

@@ -5,7 +5,7 @@ metadata:
   name: argocd
 
 resources:
-  - github.com/argoproj/argo-cd/manifests/cluster-install?ref=v3.3.3
+  - github.com/argoproj/argo-cd/manifests/cluster-install?ref=v3.2.6
   - ingressRoute.yaml
   - certificate.yaml
   - backstage-sa.yaml

manifests/artemis/mailu/kustomization.yaml

@@ -10,7 +10,7 @@ resources:
 helmCharts:
   - name: mailu
     repo: https://mailu.github.io/helm-charts/
-    version: 2.1.2
+    version: 2.6.3
     releaseName: mailu
     namespace: mailu
     valuesFile: values.yaml