other: update changelog with rpm

Author: ClementTsang

CHANGELOG.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Other
 
+- [#1206](https://github.com/ClementTsang/bottom/pull/1206): Add `.rpm` package generation.
 - [#1220](https://github.com/ClementTsang/bottom/pull/1220): Update documentation for features supporting human times.
 
 ## [0.9.2] - 2023-06-11