chore(deps): update helm release cert-manager to v1.19.4

Author: renovate[bot]

clusters/_base/addons/cert-manager/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: cert-manager
-      version: v1.18.0
+      version: v1.19.4
       sourceRef:
         kind: HelmRepository
         name: jetstack