Adjust the tracing class name to be compatible with graphql-ruby 2.0 (#5)

Author: skateman

lib/yabeda/graphql.rb

@@ -1,6 +1,6 @@
 require "yabeda"
 require "yabeda/graphql/version"
-require "yabeda/graphql/tracing"
+require "yabeda/graphql/yabeda_tracing"
 require "yabeda/graphql/instrumentation"
 
 module Yabeda
@@ -31,7 +31,7 @@ class Error < StandardError; end
 
     def self.use(schema)
       schema.instrument(:query, Instrumentation.new)
-      schema.use Tracing, trace_scalars: true
+      schema.use YabedaTracing, trace_scalars: true
     end
   end
 end

lib/yabeda/graphql/tracing.rb renamed to lib/yabeda/graphql/yabeda_tracing.rb

@@ -2,7 +2,7 @@
 
 module Yabeda
   module GraphQL
-    class Tracing < ::GraphQL::Tracing::PlatformTracing
+    class YabedaTracing < ::GraphQL::Tracing::PlatformTracing
 
       self.platform_keys = {
           'lex' => "graphql.lex",