Disable Metrics/MethodLength

Author: sue445

_tools/ruby_h_to_go/lib/ruby_h_to_go/go_util.rb

@@ -13,7 +13,7 @@ def self.snake_to_camel(str)
 
     # Generate initial go file whether not exists
     # @param go_file_path [String]
-    def self.generate_initial_go_file(go_file_path)
+    def self.generate_initial_go_file(go_file_path) # rubocop:disable Metrics/MethodLength
       return if File.exist?(go_file_path)
 
       header = +<<~GO