chore: creating version 3.0

Author: gershnik

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
+## [3.0] - 2024-01-17
+
 ### Changed
 - `BlockUtil.h`: `makeBlock` functionality is completely reworked. New functionality: 
   * Wrap any callables including mutable lambdas or any other callable that provides non-const `operator()`.
@@ -65,3 +67,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 [2.1]: https://github.com/gershnik/objc-helpers/releases/v2.1
 [2.2]: https://github.com/gershnik/objc-helpers/releases/v2.2
 [2.3]: https://github.com/gershnik/objc-helpers/releases/v2.3
+[3.0]: https://github.com/gershnik/objc-helpers/releases/v3.0