Syntax error in MetaNameBase.php using PHP 7.4

This comes from changes made in 📌 Add return types on all custom class methods Fixed to add method return types to all custom methods, and some of them have multiple allowed return types, e.g.:

  public function label(): TranslatableMarkup|string {

PHP 7.4 does not support this, it only works with PHP 8.0.

This means we have the choice of either fixing it, which would involve some changes to how the methods work, or relaxing the APIs to just say "mixed" instead of listing the specific items, or limiting the v2 modules to PHP 8.0.

This changes the module to require PHP 8.0.

What I might do is make v2 require PHP 8 and mark it the recommended version, and leave v1 available until D9 support ends in November.

Committed.

Automatically closed - issue fixed for 2 weeks with no activity.