v3.1.0 - PHP 8.2-8.4 support

PHP 8.2-8.4 Support

Changes

• PHP 8.4 compatibility: Fixed all implicit nullable parameter deprecation warnings
• PHPUnit 10: Updated test framework for modern PHP versions
• CI updates: Now tests against PHP 8.2, 8.3, and 8.4
• Updated documentation: PHP version requirement now reflects 8.2+

Breaking Changes

• Minimum PHP version is now 8.2.0

Fixed Issues

• #347 - Make compatible with PHP 8.4