chore(deps): update helm release rook-ceph to v1.13.6

Author: renovate[bot]

cluster/core/rook-ceph/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
     spec:
       # renovate: registryUrl=https://charts.rook.io/release
       chart: rook-ceph
-      version: v1.13.5
+      version: v1.13.6
       sourceRef:
         kind: HelmRepository
         name: rook-ceph-charts