message: Replace ProtobufWkt::Message with correct namespace Protobuf::Message
diff: @@ -261,7 +261,7 @@ TEST(UtilityTest, PrepareDnsRefreshStrategy) {
  }
  }
  -void packTypedStructIntoAny(ProtobufWkt::Any& typed_config, const ProtobufWkt::Message& inner) {
  +void packTypedStructIntoAny(ProtobufWkt::Any& typed_config, const Protobuf::Message& inner) {
  udpa::type::v1::TypedStruct typed_struct;
  (*typed_struct.mutable_type_url()) =
  absl::StrCat("type.googleapis.com/", inner.GetDescriptor()->full_name());
  