Remove calls to ReflectionProperty::setAccessible(true)

[GromNaN]

As of PHP 8.1.0, calling this method has no effect; all properties are accessible by default. (doc)

A deprecation message is triggered as of PHP 8.5: php/php-src#19273

[Copilot]

Pull Request Overview

This PR removes deprecated calls to ReflectionProperty::setAccessible(true) which became unnecessary in PHP 8.1.0 and will trigger deprecation warnings in PHP 8.5.

• Removes setAccessible(true) calls from reflection property access in test files
• Updates code to align with modern PHP best practices for reflection

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
tests/Database/DatabaseFunctionalTest.php	Removes two setAccessible(true) calls from reflection property access in test methods
tests/Collection/CollectionFunctionalTest.php	Removes two setAccessible(true) calls from reflection property access in test methods

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[jmikola]

Noted that v1.21 requires 8.1+, so there's no concern with supporting older PHP versions. Glad to see this method removed, as it never quite made sense to me.