Add PR microsoft#4420 to CHANGELOG

Author: malsyned

CHANGELOG.md

@@ -9,6 +9,7 @@ Features:
 - Add an option to group the default build target dropdown using CMake groups [#3953](https://github.com/microsoft/vscode-cmake-tools/pull/3953) [@itzandroidtab](https://github.com/itzandroidtab)
 - Add `cmake.exclude` setting that allows users to set folders that they want the CMake Tools extension to ignore. [#4112](https://github.com/microsoft/vscode-cmake-tools/issues/4112)
 - Add a command to substitute CMake Cache variables in `launch.json` and `tasks.json`. [#4422](https://github.com/microsoft/vscode-cmake-tools/pull/4422)
+- Add an option to extract details about failing tests from CTest output using regular expressions. [#4420](https://github.com/microsoft/vscode-cmake-tools/issues/4420)
 
 Improvements: