[Console] Harden array type for test-related user inputs #61568
Merged
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User inputs must be strings, otherwise they cannot be properly written to the
php://memorystream (because of thestr_containscheck here: https://github.com/symfony/symfony/blob/v6.4.25/src/Symfony/Component/Console/Tester/TesterTrait.php#L173). Using the hardened typed annotation, static code analyzers may assist developers in using correct array values.