Fix tests compatibility with `league/oauth2-server:^9.1` #492

Job	Run time
PHP 8.1 - Doctrine ^2.14 - Symfony 5.4.* - Composer --prefer-stable	1m 24s
PHP 8.1 - Doctrine ^3.0 - Symfony 5.4.* - Composer --prefer-stable	1m 40s
PHP 8.1 - Doctrine ^2.14 - Symfony 6.4.* - Composer --prefer-stable	1m 41s
PHP 8.1 - Doctrine ^3.0 - Symfony 6.4.* - Composer --prefer-stable	1m 25s
PHP 8.2 - Doctrine ^2.14 - Symfony 5.4.* - Composer --prefer-stable	1m 41s
PHP 8.2 - Doctrine ^3.0 - Symfony 5.4.* - Composer --prefer-stable	1m 25s
PHP 8.2 - Doctrine ^2.14 - Symfony 6.4.* - Composer --prefer-stable	1m 43s
PHP 8.2 - Doctrine ^3.0 - Symfony 6.4.* - Composer --prefer-stable	1m 24s
PHP 8.2 - Doctrine ^2.14 - Symfony 7.0.* - Composer --prefer-stable	1m 26s
PHP 8.2 - Doctrine ^3.0 - Symfony 7.0.* - Composer --prefer-stable	1m 23s
PHP 8.3 - Doctrine ^2.14 - Symfony 5.4.* - Composer --prefer-stable	1m 19s
PHP 8.3 - Doctrine ^3.0 - Symfony 5.4.* - Composer --prefer-stable	1m 39s
PHP 8.3 - Doctrine ^2.14 - Symfony 6.4.* - Composer --prefer-stable	1m 23s
PHP 8.3 - Doctrine ^3.0 - Symfony 6.4.* - Composer --prefer-stable	1m 40s
PHP 8.3 - Doctrine ^2.14 - Symfony 7.0.* - Composer --prefer-stable	1m 41s
PHP 8.3 - Doctrine ^3.0 - Symfony 7.0.* - Composer --prefer-stable	1m 29s
PHP 8.1 - Doctrine ^2.14 - Symfony 5.4.* - Composer --prefer-stable --prefer-lowest	1m 22s
	25m 45s

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