PHPORM-241 Add return type to CommandSubscriber #2971

Job	Run time
PHP 8.1 Laravel 10.* MongoDB 4.4	1m 41s
PHP 8.2 Laravel 10.* MongoDB 4.4	1m 57s
PHP 8.2 Laravel 11.* MongoDB 4.4	2m 0s
PHP 8.3 Laravel 10.* MongoDB 4.4	1m 53s
PHP 8.3 Laravel 11.* MongoDB 4.4	1m 49s
PHP 8.1 Laravel 10.* MongoDB 5.0 low-deps	1m 51s
PHP 8.2 Laravel 10.* MongoDB 5.0	1m 56s
PHP 8.2 Laravel 11.* MongoDB 5.0	1m 57s
PHP 8.3 Laravel 10.* MongoDB 5.0	2m 2s
PHP 8.3 Laravel 11.* MongoDB 5.0	1m 54s
PHP 8.1 Laravel 10.* MongoDB 6.0	1m 58s
PHP 8.2 Laravel 10.* MongoDB 6.0	1m 59s
PHP 8.2 Laravel 11.* MongoDB 6.0	2m 3s
PHP 8.3 Laravel 10.* MongoDB 6.0	2m 1s
PHP 8.3 Laravel 11.* MongoDB 6.0	2m 2s
PHP 8.1 Laravel 10.* MongoDB 7.0	1m 59s
PHP 8.2 Laravel 10.* MongoDB 7.0	1m 56s
PHP 8.2 Laravel 11.* MongoDB 7.0	2m 11s
PHP 8.3 Laravel 10.* MongoDB 7.0	2m 0s
PHP 8.3 Laravel 11.* MongoDB 7.0	1m 59s
PHP 8.4 Laravel 11.* MongoDB 7.0 ignore-php-req	1m 53s
	41m 1s

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