Switch CSR approver/signer/cleaner controllers to v1

pkg/controller/certificates/authority/BUILD

@@ -14,7 +14,7 @@ go_library(
         "//cmd/kubelet/app:__pkg__",
         "//pkg/controller/certificates:__subpackages__",
     ],
-    deps = ["//staging/src/k8s.io/api/certificates/v1beta1:go_default_library"],
+    deps = ["//staging/src/k8s.io/api/certificates/v1:go_default_library"],
 )
 
 filegroup(
@@ -39,7 +39,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
-        "//staging/src/k8s.io/api/certificates/v1beta1:go_default_library",
+        "//staging/src/k8s.io/api/certificates/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/diff:go_default_library",
         "//vendor/github.com/google/go-cmp/cmp:go_default_library",
         "//vendor/github.com/google/go-cmp/cmp/cmpopts:go_default_library",

pkg/controller/certificates/authority/authority_test.go

@@ -30,7 +30,7 @@ import (
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
 
-	capi "k8s.io/api/certificates/v1beta1"
+	capi "k8s.io/api/certificates/v1"
 	"k8s.io/apimachinery/pkg/util/diff"
 )
 

pkg/controller/certificates/authority/policies.go

@@ -22,7 +22,7 @@ import (
 	"sort"
 	"time"
 
-	capi "k8s.io/api/certificates/v1beta1"
+	capi "k8s.io/api/certificates/v1"
 )
 
 // SigningPolicy validates a CertificateRequest before it's signed by the

pkg/controller/certificates/authority/policies_test.go

@@ -22,7 +22,7 @@ import (
 	"reflect"
 	"testing"
 
-	capi "k8s.io/api/certificates/v1beta1"
+	capi "k8s.io/api/certificates/v1"
 )
 
 func TestKeyUsagesFromStrings(t *testing.T) {