chore(laravel): upgrade Laravel to version 11

[imdhemy]

Q	A
Tickets	Fix #488
License	MIT

• Upgrades to Laravel v.11
• Upgrades testbench to v.9
• Upgrades PHPUnit to v.10

[Copilot]

Pull request overview

This pull request upgrades the Laravel In-App Purchase package from Laravel 10 to Laravel 11, along with corresponding updates to PHPUnit (v10) and Orchestra Testbench (v9).

Key Changes:

• Updated Laravel framework requirement from >=10 to >=11
• Upgraded PHPUnit from v9 to v10, requiring test data provider methods to be static
• Updated PHPUnit configuration file to use the v10.5 schema with modernized settings

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tests/Events/EventFactoryTest.php	Made data provider methods static to comply with PHPUnit 10 requirements
phpunit.xml	Updated to PHPUnit 10.5 schema with new configuration options and deprecated option removal
composer.json	Updated Laravel framework constraint to >=11, testbench to ^9.15, added explicit PHPUnit ^10.5 requirement, removed --testdox flag from test script
composer.lock	Comprehensive dependency updates reflecting Laravel 11, PHPUnit 10, and testbench v9 upgrades with numerous package version bumps

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