Prepare changelog for v1.8.1

Author: paulbalandan

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this library will be documented in this file.
 
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v1.8.1](https://github.com/CodeIgniter/coding-standard/compare/v1.8.0...v1.8.1) - 2024-08-05
+
+- Add `keep_annotations` option for `php_unit_attributes`
+- Add `php_unit_assert_new_names` fixer
+- Bump dependencies
+
 ## [v1.8.0](https://github.com/CodeIgniter/coding-standard/compare/v1.7.16...v1.8.0) - 2024-06-16
 
 - Enable rules for PHP 8.1 (#20)