Bumping k8s dependencies to 1.13

vendor/github.com/gogo/protobuf/test/issue427/issue427.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+package issue427;
+
+import "github.com/gogo/protobuf/gogoproto/gogo.proto";
+
+option (gogoproto.testgen_all)  = true;
+option (gogoproto.populate_all) = true;
+option (gogoproto.sizer_all)    = true;
+option (gogoproto.equal_all)    = true;
+
+message Foo {
+    string foo = 1;
+}
+
+service Bar {
+    rpc GetBar (Foo) returns (Foo);
+}