Issue #3454215: Update drush.services.yml file to include updated path to Drush command file.
requested to merge issue/config_pages-3454215:3454215-class-drupalconfigpagescommandsdrushconfigpagescommands-does into 8.x-2.x
Updates the path to the ConfigPagesCommands class file to match the new path setup for Drush 12.