Fix changelog

CHANGELOG.md

@@ -72,7 +72,7 @@ Special thanks to [@siad007](https://github.com/siad007) and [@carusogabriel]( h
 - Add benchmarks
 
 [Unreleased]: https://github.com/idealo/php-rdkafka-ffi/compare/v0.4.0...HEAD
-[0.3.0]: https://github.com/idealo/php-rdkafka-ffi/compare/v0.3.0...v0.4.0
+[0.4.0]: https://github.com/idealo/php-rdkafka-ffi/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/idealo/php-rdkafka-ffi/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/idealo/php-rdkafka-ffi/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/idealo/php-rdkafka-ffi/releases/tag/v0.1.0