[WIP] Enhance VichUploaderBundle with PHP 8.2 and 8.3 features

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Leverage features introduced in PHP 8.2 and 8.3 to enhance the functionality and maintainability of the VichUploaderBundle. Update existing components to take advantage of PHP 8.2 and PHP 8.3 features, such as readonly properties, readonly classes for value objects where immutability is required, and Disjunctive Normal Form (DNF) types in method signatures. Incorporate constants in traits if applicable and explore the use of the new random extension introduced in PHP 8.3.

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