feat: added Sealed Secrets application for sercrets management

apps/sealed-secrets.yaml

@@ -0,0 +1,18 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: sealed-secrets
+  namespace: argocd
+spec:
+  project: default
+  source:
+    repoURL: https://bitnami-labs.github.io/sealed-secrets
+    chart: sealed-secrets
+    targetRevision: 2.15.3
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: kube-system
+  syncPolicy:
+    automated:
+      prune: true
+      selfheal: true