Merge pull request #1002 from rackerlabs/renovate/sealed-secrets-2.x

chore(deps): update helm release sealed-secrets to v2.17.3

Author: cardoe

bootstrap/sealed-secrets/kustomization.yaml

@@ -11,5 +11,5 @@ helmCharts:
   namespace: kube-system
   valuesFile: values.yaml
   releaseName: sealed-secrets
-  version: 2.17.2
+  version: 2.17.3
   repo: https://bitnami-labs.github.io/sealed-secrets