refactor to use with argocd instead of flux

cluster/helm/cert-manager/cert-manager-release.yml

@@ -1,27 +0,0 @@
----
-apiVersion: helm.toolkit.fluxcd.io/v2
-kind: HelmRelease
-metadata:
-  name: cert-manager
-  namespace: cert-manager
-spec:
-  interval: 24h
-  chart:
-    spec:
-      chart: cert-manager
-      version: "v1.18.2"
-      sourceRef:
-        kind: HelmRepository
-        name: jetstack
-        namespace: flux-system
-      interval: 24h
-  install:
-    remediation:
-      retries: 3
-  upgrade:
-    remediation:
-      retries: 3
-  values:
-    crds:
-      enabled: true
-      keep: true

cluster/helm/cert-manager/cert-manager-repo.yml

@@ -1,9 +0,0 @@
----
-apiVersion: source.toolkit.fluxcd.io/v1
-kind: HelmRepository
-metadata:
-  name: jetstack
-  namespace: flux-system
-spec:
-  interval: 24h
-  url: https://charts.jetstack.io

cluster/helm/cert-manager/values.yml

@@ -0,0 +1,5 @@
+# https://charts.jetstack.io
+
+crds:
+  enabled: true
+  keep: true