Update ChangeLog

Author: sebastianbergmann

ChangeLog-10.5.md

@@ -9,6 +9,7 @@ All notable changes of the PHPUnit 10.5 release series are documented in this fi
 * [#4584](https://github.com/sebastianbergmann/phpunit/issues/4584): `assertJsonStringEqualsJsonString()` considers objects with sequential numeric keys equal to arrays
 * [#4625](https://github.com/sebastianbergmann/phpunit/issues/4625): Generator yielding keys that are neither integer or string leads to hard-to-understand error message when used as data provider
 * [#4674](https://github.com/sebastianbergmann/phpunit/issues/4674): JSON assertions should treat objects as unordered
+* [#5891](https://github.com/sebastianbergmann/phpunit/issues/5891): `Callback` constraint does not handle variadic arguments correctly when used for mock object expectations
 * [#5929](https://github.com/sebastianbergmann/phpunit/issues/5929): TestDox output containing `$` at the beginning gets truncated when used with a data provider
 
 ## [10.5.32] - 2024-09-04