update changelog

Author: etpinard

CHANGELOG.md

@@ -2,6 +2,12 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
+## [UNRELEASED]
+
+## Changed
+
+- [#2573](https://github.com/plotly/dash/pull/2573) Use `julia --project` command inside `JuliaRunner`.
+
 ## [2.11.0] - 2023-06-23
 
 ## Added