Update CHANGELOG.md

Author: Amanieu

CHANGELOG.md

@@ -9,25 +9,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## `parking_lot` - [0.12.4](https://github.com/Amanieu/parking_lot/compare/parking_lot-v0.12.3...parking_lot-v0.12.4) - 2025-05-29
 
-### Other
-- Use a single changelog with release-plz
-- Add release-plz for automatic releases
 - Fix parked upgraders potentially not being woken up after a write lock
 - Fix clearing `PARKED_WRITER_BIT` after a timeout
-- Check MSRV using cargo-msrv in CI
 
 ## `parking_lot_core` - [0.9.11](https://github.com/Amanieu/parking_lot/compare/parking_lot_core-v0.9.10...parking_lot_core-v0.9.11) - 2025-05-29
 
-### Other
-- Check MSRV using cargo-msrv in CI
 - Use Release/Acquire ordering in thread_parker::windows::Backend::create
 - Remove warnings due to new lint on unknown cfgs
 
 ## `lock_api` - [0.4.13](https://github.com/Amanieu/parking_lot/compare/lock_api-v0.4.12...lock_api-v0.4.13) - 2025-05-29
 
-### Other
-- Check MSRV using cargo-msrv in CI
 - Remove warnings due to new lint on unknown cfgs
+
 ## parking_lot 0.12.3 (2024-05-24)
 
 - Export types provided by arc_lock feature (#442)