Switch to Random\Randomizer with PHP 8.2

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Various functionality within Core use PHP functions such as str_shuffle() and array_rand() internally.

In PHP 8.2, a new Random\Randomizer class has been introduced, which provides a modernized way to access randomizing capabilities. There is a possibility (it is being discussed) that the currently available methods will be deprecated in favor of this newly introduced class.

To prevent deprecation notices in future PHP versions, all usages of the methods being deprecated should be replaced with the usage of the new class once PHP 8.2 is widely available.

Resources:

• https://php.watch/versions/8.2/ext-random