Update browser releases (#27455)

Author: mdn-bot

browsers/edge.json

@@ -479,6 +479,7 @@
         },
         "140": {
           "release_date": "2025-09-04",
+          "release_notes": "https://learn.microsoft.com/en-us/microsoft-edge/web-platform/release-notes/140",
           "status": "nightly",
           "engine": "Blink",
           "engine_version": "140"