[12.x] Modernize type casting

[lucasmichot]

This PR refactors several parts of the codebase to use more explicit and modern PHP typecasting (e.g., (int), (float), ect...) for better readability and intent.

Why:

• Enhances clarity of type conversions.
• No functional changes — purely a cleanup.

Impact:

• Fully backward-compatible.
• No behavioral changes.
• Requires review of casting correctness only.

cf. https://mlocati.github.io/php-cs-fixer-configurator/#version:3.88|fixer:modernize_types_casting

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pint was not run against those changes, as it would break StyleCI

[cosmastech]

pint doesn't run against the codebase, StyleCI does.

So you'd have to run just this change against the codebase with pint and then commit that. I doubt StyleCI would overwrite it, but I am not totally sure.

[lucasmichot]

So you'd have to run just this change against the codebase with pint and then commit that. I doubt StyleCI would overwrite it, but I am not totally sure.

It would.