\Drupal\locale\LocaleProjectRepository::buildProjects() does not respect weight in 11.4.x

Problem/Motivation

\Drupal\locale\LocaleProjectRepository::buildProjects no longer respects weight since the massive refactor in #3037156: Modernize locale history functions

The example hook documentation

function hook_locale_translation_projects_alter(&$projects) {
  // The translations are located at a custom translation sever.
  $projects['existing_project'] = [
    'info' => [
      'interface translation server pattern' => 'http://example.com/files/translations/%core/%project/%project-%version.%language.po',
    ],
    // An optional key to change the order in which translation files are
    // processed. By default, the projects are sorted alphabetically by key.
    'weight' => 1,
  ];
}

works on 11.3 but not 11.4.x

Steps to reproduce

See #3609008: Fix module on 11.4.x

Proposed resolution

Remaining tasks

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet