Use RESTRICT_ON_SEND for Style/RedundantCurrentDirectoryInPath

lib/rubocop/cop/style/redundant_current_directory_in_path.rb

@@ -18,10 +18,10 @@ class RedundantCurrentDirectoryInPath < Base
         extend AutoCorrector
 
         MSG = 'Remove the redundant current directory path.'
+        RESTRICT_ON_SEND = %i[require_relative].freeze
         CURRENT_DIRECTORY_PATH = './'
 
         def on_send(node)
-          return unless node.method?(:require_relative)
           return unless (first_argument = node.first_argument)
           return unless first_argument.str_content&.start_with?(CURRENT_DIRECTORY_PATH)
           return unless (index = first_argument.source.index(CURRENT_DIRECTORY_PATH))