add changelog

Author: julienrbrt

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Improve cache handling when there is a significant backlog of pending headers and data. ([#3030](https://github.com/evstack/ev-node/pull/3030))
 - Decrease MaxBytesSize to `5MB` to increase compatibility with public nodes. ([#3030](https://github.com/evstack/ev-node/pull/3030))
+- Replace `go-header` store by `ev-node` store. This avoid duplication of all blocks in `go-header` and `ev-node` store. Thanks to the cached store from #3030, this should improve p2p performance as well.
 
 ## v1.0.0-rc.1