Fix 4.44.3 security announcement date (#23337)

## Description

Noticed that the date for the 4.44.3 Desktop release was incorrect and
corrected it.

Signed-off-by: Chris Crone <[email protected]>

Author: chris-crone

content/manuals/security/security-announcements.md

@@ -16,7 +16,7 @@ toc_max: 2
 
 _Last updated August 20, 2025_
 
-A vulnerability in Docker Desktop was fixed on July 03 in the [4.44.3](/manuals/desktop/release-notes.md#4443) release:
+A vulnerability in Docker Desktop was fixed on August 20 in the [4.44.3](/manuals/desktop/release-notes.md#4443) release:
 
 - Fixed [CVE-2025-9074](https://www.cve.org/CVERecord?id=CVE-2025-9074) where a malicious container running on Docker Desktop could access the Docker Engine and launch additional containers without requiring the Docker socket to be mounted. This could allow unauthorized access to user files on the host system. Enhanced Container Isolation (ECI) does not mitigate this vulnerability.