Add breaking change from #6043 to CHANGELOG (#6354)

CHANGELOG.md

@@ -32,6 +32,7 @@
 - Upgrade protobuf definitions to flightsql 17.0 \(\#6133\) [\#6169](https://github.com/apache/arrow-rs/pull/6169) [[arrow-flight](https://github.com/apache/arrow-rs/labels/arrow-flight)] ([alamb](https://github.com/alamb))
 - Remove automatic buffering in `ipc::reader::FileReader` for for consistent buffering [\#6132](https://github.com/apache/arrow-rs/pull/6132) [[arrow](https://github.com/apache/arrow-rs/labels/arrow)] ([V0ldek](https://github.com/V0ldek))
 - No longer write Parquet column metadata after column chunks \*and\* in the footer [\#6117](https://github.com/apache/arrow-rs/pull/6117) [[parquet](https://github.com/apache/arrow-rs/labels/parquet)] ([etseidl](https://github.com/etseidl))
+- Remove `impl<T: AsRef<[u8]>> From<T> for Buffer` that easily accidentally copies data [\#6043](https://github.com/apache/arrow-rs/pull/6043) [[arrow](https://github.com/apache/arrow-rs/labels/arrow)] ([XiangpengHao](https://github.com/XiangpengHao))
 
 **Implemented enhancements:**