Use v1 API for RoleBinding 🦝

Starting in 1.17, using `RoleBinding` with
rbac.authorization.k8s.io/v1beta1 is deprecated and will be removed in
1.22. Let's use `v1` API instead.

Signed-off-by: Vincent Demeester <vdemeest@redhat.com>

config/201-rolebinding.yaml

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: tekton-pipelines-controller
@@ -30,7 +30,7 @@ roleRef:
   name: tekton-pipelines-controller
   apiGroup: rbac.authorization.k8s.io
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: tekton-pipelines-webhook
@@ -48,7 +48,7 @@ roleRef:
   name: tekton-pipelines-webhook
   apiGroup: rbac.authorization.k8s.io
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: tekton-pipelines-controller-leaderelection
@@ -66,7 +66,7 @@ roleRef:
   name: tekton-pipelines-leader-election
   apiGroup: rbac.authorization.k8s.io
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: tekton-pipelines-webhook-leaderelection