docs(CHANGELOG): remove 0.2.0-alpha.9 as yanked

CHANGELOG.md

@@ -9,8 +9,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased] - ReleaseDate
 
 ## [0.2.0-alpha.10] - 2023-10-11
-
-## [0.2.0-alpha.9] - 2023-10-11
 ### Added
 - core: unstable `ActorGroup::stop_order()` to specify termination order.
 - network: support UDS (configured as `uds://path/to/socket`).
@@ -540,8 +538,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- next-url -->
 [Unreleased]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.10...HEAD
-[0.2.0-alpha.10]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.9...elfo-v0.2.0-alpha.10
-[0.2.0-alpha.9]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.8...elfo-v0.2.0-alpha.9
+[0.2.0-alpha.10]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.8...elfo-v0.2.0-alpha.10
 [0.2.0-alpha.8]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.7...elfo-v0.2.0-alpha.8
 [0.2.0-alpha.7]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.6...elfo-v0.2.0-alpha.7
 [0.2.0-alpha.6]: https://github.com/elfo-rs/elfo/compare/elfo-v0.2.0-alpha.4...elfo-v0.2.0-alpha.6