chore: Enable the new Rubocop rules (#7122)

fixes: https://linear.app/chatwoot/issue/CW-1574/renable-the-disabled-rubocop-rules

spec/cypress/app_commands/activerecord_fixtures.rb

@@ -7,7 +7,7 @@ if defined?(ActiveRecord)
   require 'active_record/fixtures'
 
   fixtures_dir ||= ActiveRecord::Tasks::DatabaseTasks.fixtures_path
-  fixture_files ||= Dir["#{fixtures_dir}/**/*.yml"].map { |f| f[(fixtures_dir.size + 1)..-5] }
+  fixture_files ||= Dir["#{fixtures_dir}/**/*.yml"].pluck((fixtures_dir.size + 1)..-5)
 
   logger.debug "loading fixtures: { dir: #{fixtures_dir}, files: #{fixture_files} }"
   ActiveRecord::FixtureSet.reset_cache

spec/cypress/app_commands/log_fail.rb

@@ -18,6 +18,6 @@ if defined?(ActiveRecord::Base)
 end
 
 filename = command_options.fetch('runnable_full_title', 'no title').gsub(/[^[:print:]]/, '')
-File.open(Rails.root.join("log/#{filename}.json"), 'w+') do |file|
+Rails.root.join("log/#{filename}.json").open('w+') do |file|
   file << JSON.pretty_generate(json_result)
 end