chore: bump helm release (#1432)

Signed-off-by: Moritz Johner <beller.moritz@googlemail.com>

deploy/charts/external-secrets/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: external-secrets
 description: External secret management for Kubernetes
 type: application
-version: "0.5.8"
-appVersion: "v0.5.8"
+version: "0.5.9"
+appVersion: "v0.5.9"
 kubeVersion: ">= 1.19.0-0"
 keywords:
   - kubernetes-external-secrets