Update CHANGELOG.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: MicroFish91

CHANGELOG.md

@@ -35,7 +35,7 @@ This release brings DTS consumption plan support, a new Function Host Debugger V
 * [[4894](https://github.com/microsoft/vscode-azurefunctions/pull/4894)] Migrate to **esbuild**
 * [[4906](https://github.com/microsoft/vscode-azurefunctions/pull/4906)] Refactor **cpUtils** to use `vscode-processutils`
 * [[4920](https://github.com/microsoft/vscode-azurefunctions/pull/4920)] Migrate tests to use testApi with esbuild
-* Bump 15 dependencies
+* Bump 15 dependencies across build, test, and tooling infrastructure
 
 ## 1.20.3 - 2025-12-16