update ruby

src/ruby/pb/grpc/health/v1/health_services_pb.rb

@@ -1,7 +1,8 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # Source: grpc/health/v1/health.proto for package 'grpc.health.v1'
 # Original file comments:
-# Copyright 2015 gRPC authors.
+# Copyright 2015, gRPC Authors
+# All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,6 +16,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# The canonical version of this proto can be found at
+# https://github.com/grpc/grpc-proto/blob/master/grpc/health/v1/health.proto
+#
 
 require 'grpc'
 require 'grpc/health/v1/health_pb'