VOL-2265 test go.mod and vendor consistency;
Update dependencies to resolve `410 Gone` errors when fetching modules

Change-Id: If0bdbc1b6d629ce819b9fa4701c016df812f92d5
diff --git a/vendor/k8s.io/api/certificates/v1beta1/generated.pb.go b/vendor/k8s.io/api/certificates/v1beta1/generated.pb.go
index 19bf225..8b6964c 100644
--- a/vendor/k8s.io/api/certificates/v1beta1/generated.pb.go
+++ b/vendor/k8s.io/api/certificates/v1beta1/generated.pb.go
@@ -33,16 +33,21 @@
 */
 package v1beta1
 
-import proto "github.com/gogo/protobuf/proto"
-import fmt "fmt"
-import math "math"
+import (
+	fmt "fmt"
 
-import github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
+	proto "github.com/gogo/protobuf/proto"
 
-import strings "strings"
-import reflect "reflect"
+	math "math"
 
-import io "io"
+	github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
+
+	strings "strings"
+
+	reflect "reflect"
+
+	io "io"
+)
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal