chore(deps): update helm chart external-secrets to v0.20.4

apps/templates/external-secrets-helm.yaml

@@ -15,7 +15,7 @@ spec:
   sources:
     - chart: external-secrets
       repoURL: https://charts.external-secrets.io
-      targetRevision: 0.10.7
+      targetRevision: 0.20.4
   destination:
     server: https://kubernetes.default.svc
     namespace: external-secrets

apps/templates/snapshot-controller-helm.yaml

@@ -7,7 +7,7 @@ spec:
   project: default
   source:
     repoURL: https://github.com/kubernetes-csi/external-snapshotter.git
-    targetRevision: v8.6.0
+    targetRevision: v8.2.1
     path: deploy/kubernetes/snapshot-controller
   destination:
     server: https://kubernetes.default.svc