Update rubocop

Author: jaynetics

Gemfile

@@ -8,7 +8,7 @@ gemspec
 gem 'debug'
 gem 'gouteur', '~> 1.0'
 gem 'mini_racer', '~> 0.19'
-gem 'rake', '~> 13.0'
+gem 'rake', '~> 13.3'
 gem 'rspec', '~> 3.13'
-gem 'rubocop', '~> 1.68'
+gem 'rubocop', '~> 1.79'
 gem 'simplecov-cobertura'

lib/js_regex/converter/backreference_converter.rb

@@ -36,7 +36,7 @@ def convert_to_plain_num_ref
 
         # Check if this backreference refers to a group that was recursively called
         original_group = target_position
-        if recursive_position = context.get_recursive_group_position(original_group)
+        if (recursive_position = context.get_recursive_group_position(original_group))
           # Use the position of the group created by the recursive call
           position = recursive_position
         end