Improvements and tests for the me endpoint #1401

Job	Run time
PHP-CS-Fixer (PHP 8.4)	17s
PHPUnit (Symfony 7.3) (PHP 8.4)	1m 15s
PHPUnit (Symfony ^7.2) (PHP 8.4) (lowest dependencies)	39s
Behat (Symfony 7.3) (PHP 8.3)	5m 12s
Behat (Symfony 7.3) (PHP 8.4)	5m 18s
PHPUnit (Symfony 7.3) (PHP 8.3)	39s
PHPUnit (Symfony NEXT 7.4) (PHP 8.4)	37s
Behat (Symfony ^7.2) (PHP 8.4) (lowest dependencies)	4m 35s
Behat (Symfony NEXT 7.4) (PHP 8.4)	4m 42s
	23m 14s

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