cert-manager: Fix incorrect leader election namespace lead to insufficient permission (#8433)

roles/kubernetes-apps/ingress_controller/cert_manager/templates/cert-manager.yml.j2

@@ -630,7 +630,7 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: Role
 metadata:
   name: cert-manager-cainjector:leaderelection
-  namespace: {{ cert_manager_namespace }}
+  namespace: {{ cert_manager_leader_election_namespace }}
   labels:
     app: cainjector
     app.kubernetes.io/name: cainjector
@@ -664,7 +664,7 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: Role
 metadata:
   name: cert-manager:leaderelection
-  namespace: {{ cert_manager_namespace }}
+  namespace: {{ cert_manager_leader_election_namespace }}
   labels:
     app: cert-manager
     app.kubernetes.io/name: cert-manager
@@ -719,7 +719,7 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: cert-manager-cainjector:leaderelection
-  namespace: {{ cert_manager_namespace }}
+  namespace: {{ cert_manager_leader_election_namespace }}
   labels:
     app: cainjector
     app.kubernetes.io/name: cainjector
@@ -742,7 +742,7 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: cert-manager:leaderelection
-  namespace: {{ cert_manager_namespace }}
+  namespace: {{ cert_manager_leader_election_namespace }}
   labels:
     app: cert-manager
     app.kubernetes.io/name: cert-manager