update Role,ClusterRole,..Bindings to v1

In Kubernetes 1.22.0, along with beta CRD, the rbac.authorization.k8s.io
v1beta1 api group has been deprecated and finally removed. This update
allows Flux to be installed there. It is a breaking change, and leaves
versions of Kubernetes <1.8 behind.

(The CRD v1 change already leaves Kubernetes <1.16 behind, so...)

Signed-off-by: Kingdon Barrett <yebyen@gmail.com>

chart/flux/templates/rbac-role.yaml

@@ -1,6 +1,6 @@
 {{- if and .Values.rbac.create (eq .Values.clusterRole.create false) -}}
 {{- range $namespace := (append .Values.allowedNamespaces .Release.Namespace) }}
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: Role
 metadata:
   name: {{ template "flux.fullname" $ }}
@@ -18,7 +18,7 @@ rules:
     verbs:
       - '*'
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: {{ template "flux.fullname" $ }}
@@ -38,7 +38,7 @@ subjects:
     kind: ServiceAccount
 ---
 {{- end }}
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: {{ template "flux.fullname" . }}-crd
@@ -62,7 +62,7 @@ rules:
     verbs:
       - list
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: {{ template "flux.fullname" . }}

chart/flux/templates/rbac.yaml

@@ -1,6 +1,6 @@
 {{- if .Values.rbac.create -}}
 {{if .Values.clusterRole.create -}}
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: {{ template "flux.clusterRoleName" . }}
@@ -23,7 +23,7 @@ rules:
 {{- end -}}
 {{- if or .Values.clusterRole.create .Values.clusterRole.name }}
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: {{ template "flux.clusterRoleName" . }}

deploy/flux-account.yaml

@@ -9,7 +9,7 @@ metadata:
   name: flux
   namespace: flux
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   labels:
@@ -22,7 +22,7 @@ rules:
   - nonResourceURLs: ['*']
     verbs: ['*']
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   labels: