Turn off the finalizer output to avoid timeouts.

ruby/lib/google/protobuf/ffi/message.rb

diff --git a/ruby/lib/google/protobuf/ffi/message.rb b/ruby/lib/google/protobuf/ffi/message.rb
index 7acbaa5..163307c 100644
--- a/ruby/lib/google/protobuf/ffi/message.rb
+++ b/ruby/lib/google/protobuf/ffi/message.rb
@@ -318,7 +318,7 @@
 
           def self.create_finalizer
             proc do | object_id |
-              $stderr.puts "Finalized #{object_id}"
+              # $stderr.puts "Finalized #{object_id}"
             end
           end