Merge branch 'bvl-fix-graphql-autoloading' into 'master'

Types::BaseField accepts authorize after reload

See merge request gitlab-org/gitlab-ce!25694

config/initializers/graphql.rb

 # frozen_string_literal: true
 
 GraphQL::Field.accepts_definitions(authorize: GraphQL::Define.assign_metadata_key(:authorize))
-Types::BaseField.accepts_definition(:authorize)
+GraphQL::Schema::Field.accepts_definition(:authorize)