Merge branch 'po-lint-require' into 'master'

Do not require the simple_po_parser in the gettext rake task when in a

Closes #37379

See merge request !14044

lib/tasks/gettext.rake

 require "gettext_i18n_rails/tasks"
-require 'simple_po_parser'
 
 namespace :gettext do
   # Customize list of translatable files
@@ -23,6 +22,8 @@ namespace :gettext do
 
   desc 'Lint all po files in `locale/'
   task lint: :environment do
+    require 'simple_po_parser'
+
     FastGettext.silence_errors
     files = Dir.glob(Rails.root.join('locale/*/gitlab.po'))