Implicitly marking parameter as nullable is deprecated in PHP8.4

Problem/Motivation

Deprecated function: Drupal\key\KeyConfigOverrides::__construct(): Implicitly marking parameter $config_factory as nullable is deprecated, the explicit nullable type must be used instead in include() (line 571 of C:\laragon\www\drupal-contribution\vendor\composer\ClassLoader.php).
Deprecated function: Drupal\key\KeyConfigOverrides::__construct(): Implicitly marking parameter $cache_backend as nullable is deprecated, the explicit nullable type must be used instead in include() (line 571 of C:\laragon\www\drupal-contribution\vendor\composer\ClassLoader.php).

Steps to reproduce

Install module with PHP version 8.4 (Drupal 10.4)