chore: update CHANGELOG.

Author: peterhuene

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- Remove `reqwest-retry` dependency in favor of `tokio-retry2` ([#21](https://github.com/stjude-rust-labs/tes/pull/21)).
 - Fix serialization of optional values in request and response types ([#19](https://github.com/stjude-rust-labs/tes/pull/19)).
 
 ## 0.8.0 - 06-04-2025