chore: add CHANGELOG entry for Properly wrapping long impl trait parameters

Author: ytmimi

CHANGELOG.md

@@ -22,6 +22,7 @@
 - Prevent panic when rewriting missing spans that contain unicode whitespace chars [#5739](https://github.com/rust-lang/rustfmt/issues/5739)
 - Allow `NotADirectory` errors when looking up rustfmt configuration files [#6624](https://github.com/rust-lang/rustfmt/pull/6624)
 - Prevent panic when sorting imports starting with a `_` for `style_edition=2015|2018|2021` [#6668](https://github.com/rust-lang/rustfmt/issues/6668)
+- Properly wrap long `impl trait` function parameters at the `max_width` when setting `style_edition=2027` [#6381](https://github.com/rust-lang/rustfmt/issues/6381)
 
 ### Changed
 - Stabilize `style_edition=2024` and stabilize the `style_edition` command line option [#6431](https://github.com/rust-lang/rustfmt/pull/6431) [rust-lang/rust#134929](https://github.com/rust-lang/rust/pull/134929)