Mention New Feature in release notes

Git's executables are
[now](#429)
marked [Terminal
Server-aware](git-for-windows/git#3942),
meaning: Git will be slightly faster when being run using Remote
Desktop Services.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

ReleaseNotes.md

@@ -54,6 +54,7 @@ Around the beginning of 2023, Git for Windows will drop support for Windows 7 an
 
 * Comes with [tig v2.5.6](https://github.com/jonas/tig/releases/tag/tig-2.5.6).
 * Comes with [Bash v5.1 patchlevel 016 ](https://tiswww.case.edu/php/chet/bash/NEWS).
+* Git's executables are [now](https://github.com/git-for-windows/build-extra/pull/429) marked [Terminal Server-aware](https://github.com/git-for-windows/git/pull/3942), meaning: Git will be slightly faster when being run using Remote Desktop Services.
 
 ### Bug Fixes