Symfony version(s) affected: >= 4.4.0 (4.3.9 works)

Description

The Intl::getLanguageBundle()->getLanguageName('de, 'AT', 'en'); does not longer return the region specific language. Expected Austrian German got German same for en, GB expect British English got English.

also getLanguages seems not longer contain Austrian German and the other region specific values.

How to reproduce

Intl::getLanguageBundle()->getLanguageName('de, 'AT', 'en'); // should return `Austrian German` does return `German`

Intl::getLanguageBundle()->getLanguages('en'); // does not longer contain `Austrian German`

Additional context

Think it has something todo with @ro0NL changes in #33148 I always landing in the exception case with

Couldn't read the indices [Names][en_GB] for the locale "en" in "sulu/web-twig/vendor/symfony/intl/Resources/data/languages". The indices also couldn't be found for the fallback locale(s) "root".