Laravel 13 support

[bytestream]

@barryvdh 🤞🏼

[Copilot]

Pull request overview

Adds compatibility scaffolding for the next Laravel major by widening Composer constraints and extending CI to cover the new Laravel/PHP combinations, plus a small test helper tweak to avoid deprecated reflection accessibility toggling.

Changes:

• Allow Laravel 13 (illuminate/* + laravel/framework) in composer.json.
• Extend GitHub Actions test matrix to include Laravel 13 and PHP 8.5, with a new “Select Laravel 13” step.
• Simplify tests/Helpers.php reflection attribute access to call ReflectionProperty::getValue() directly.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
tests/Helpers.php	Removes setAccessible(true/false) usage when reading non-public properties via reflection.
composer.json	Expands supported Laravel/Illuminate versions to include ^13.
.github/workflows/ci.yml	Adds Laravel 13 and PHP 8.5 to the CI matrix and installs laravel/framework:13.* for that lane.

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