v2.0.0

• [2.x] Fix namespaced closures being considered first class callables by @nunomaduro in #97
• [2.x] Cleanup phpunit.xml by @Jubeki in #95
• [2.x] PHP 8.4 support by @Jubeki in #90
• [2.x] Supports PHPStan 2 by @crynobone in #100
• Prepare 2.0.0 release by @crynobone in #99