Fatal Error

/**
  * Updates the contactmethods with an additional set of social profiles.
  *
  * These are used with the Facebook author, rel="author", Twitter cards implementation, but also in the sameAs schema attributes.
  *
  * @param array<string, string> $contactmethods Currently set contactmethods.
  *
  * @return array<string, string> Contactmethods with added contactmethods.
  */
  public function update_contactmethods( $contactmethods ) {
	 $additional_contactmethods = $this->additional_contactmethods_collector->get_additional_contactmethods_objects();
	 if( is_array($contactmethods) ){
	   return \array_merge( ( $contactmethods ?? [] ), $additional_contactmethods );
	 }
	 else{
	   return [];
	 }
		
}

In wordpress-seo/src/user-meta/user-interface/additional-contactmethods-integration.php the return should be updated to solve the error. This is a quick and easy appaorach, but does the trick. Is there anything I can do to get a fix like this into Yoast core?