Add a release note (feature)

Comes with [OpenSSH
v10.1.P1](https://github.com/openssh/openssh-portable/releases/tag/V_10_1_P1).

Signed-off-by: gitforwindowshelper[bot] <[email protected]>

Author: gitforwindowshelper[bot]

ReleaseNotes.md

@@ -42,6 +42,7 @@ Git for Windows is distributed with other components yet, such as Bash, zlib, cu
 ### New Features
 
 * Comes with [OpenSSL v3.5.4](https://www.openssl.org/news/openssl-3.5-notes.html).
+* Comes with [OpenSSH v10.1.P1](https://github.com/openssh/openssh-portable/releases/tag/V_10_1_P1).
 
 ## Changes since Git for Windows v2.51.0 (August 19th 2025)