Update ChangeLog

Author: sebastianbergmann

ChangeLog-10.5.md

@@ -2,6 +2,10 @@
 
 All notable changes of the PHPUnit 10.5 release series are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
 
+## [10.5.20] - 2024-MM-DD
+
+* [#5819](https://github.com/sebastianbergmann/phpunit/issues/5819): Duplicate keys from different data providers are not handled properly
+
 ## [10.5.19] - 2024-04-17
 
 ### Fixed
@@ -199,6 +203,7 @@ All notable changes of the PHPUnit 10.5 release series are documented in this fi
 
 * [#5563](https://github.com/sebastianbergmann/phpunit/issues/5563): `createMockForIntersectionOfInterfaces()` does not automatically register mock object for expectation verification
 
+[10.5.20]: https://github.com/sebastianbergmann/phpunit/compare/10.5.19...10.5
 [10.5.19]: https://github.com/sebastianbergmann/phpunit/compare/10.5.18...10.5.19
 [10.5.18]: https://github.com/sebastianbergmann/phpunit/compare/10.5.17...10.5.18
 [10.5.17]: https://github.com/sebastianbergmann/phpunit/compare/10.5.16...10.5.17