Add changelog entry

Author: pindab0ter

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 [Next release](https://github.com/barryvdh/laravel-ide-helper/compare/v2.12.3...master)
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-### Fixes
+### Fixed
 - Fix return type of methods provided by `SoftDeletes` [#1345 / KentarouTakeda](https://github.com/barryvdh/laravel-ide-helper/pull/1345)
 - Handle PHP 8.1 deprecation warnings when passing `null` to `new \ReflectionClass` [#1351 / mfn](https://github.com/barryvdh/laravel-ide-helper/pull/1351)
 - Fix issue where \Eloquent is not included when using write_mixin [#1352 / Jefemy](https://github.com/barryvdh/laravel-ide-helper/pull/1352)
@@ -14,6 +14,7 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 - Add support for custom casts that implement `CastsInboundAttributes` [#1329 / sforward](https://github.com/barryvdh/laravel-ide-helper/pull/1329)
+- Add support for attribute accessors marked as protected. [#1339 / pindab0ter](https://github.com/barryvdh/laravel-ide-helper/pull/1339)
 
 2022-03-06, 2.12.3
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