chore(deps): update helm release sealed-secrets to v2.17.7

Author: renovate[bot]

cluster-wide-apps/sealed-secrets.yaml

@@ -8,7 +8,7 @@ spec:
   sources:
     - chart: sealed-secrets
       repoURL: https://bitnami-labs.github.io/sealed-secrets
-      targetRevision: 2.17.3
+      targetRevision: 2.17.7
   destination:
     server: https://kubernetes.default.svc
     namespace: kube-system