Fix broken GitHub downloads URL in update message (#6001)

The /downloads endpoint was removed by GitHub years ago and now returns 404. Updated to point to /releases which has the actual download links.

Author: fxrhan

lib/core/update.py

@@ -163,7 +163,7 @@ def update():
             infoMsg += "to use a GitHub for Windows client for updating "
             infoMsg += "purposes (https://desktop.github.com/) or just "
             infoMsg += "download the latest snapshot from "
-            infoMsg += "https://github.com/sqlmapproject/sqlmap/downloads"
+            infoMsg += "https://github.com/sqlmapproject/sqlmap/releases"
         else:
             infoMsg = "for Linux platform it's recommended "
             infoMsg += "to install a standard 'git' package (e.g.: 'apt install git')"