Handling expression in location cast

[tkaratug]

This pull request introduces enhancements to the laravel-spatial package, focusing on adding expression support for the LocationCast class, modernizing the test suite with PHPUnit attributes, and improving test coverage. Below are the most significant changes grouped by theme:

Enhancements to LocationCast functionality:

• Added support for handling Expression objects in the get() method of LocationCast by introducing a private getCoordinates() method. This allows parsing spatial expressions like ST_GeomFromText to extract coordinates. (src/Casts/LocationCast.php) [1] [2]

Modernization of the test suite:

• Replaced @test annotations with #[Test] attributes across all test methods for compatibility with modern PHPUnit syntax. (tests/HasSpatialTest.php, tests/LocationCastTest.php, tests/PointTest.php) [1] [2] [3]

Improved test coverage:

• Added a new test case to verify that the get() method in LocationCast correctly handles Expression objects and returns a Point instance. (tests/LocationCastTest.php)

Documentation updates:

• Updated the CHANGELOG.md file to document the new features and changes introduced in version 3.0.1. (CHANGELOG.md)