Add changelog entry

Author: pindab0ter

CHANGELOG.md

@@ -7,6 +7,7 @@ All notable changes to this project will be documented in this file.
 
 ### Fixed
 - Add support for attribute accessors marked as protected. [#1339 / pindab0ter](https://github.com/barryvdh/laravel-ide-helper/pull/1339)
+- Add support for attribute accessors with no backing field or type hinting [#1315 / pindab0ter](https://github.com/barryvdh/laravel-ide-helper/pull/1338).
 
 2023-02-04, 2.13.0
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