@paulcbetts was able to score us a fix after discussion in Squirrel.W…

…indows issue #900  (thanks!)

@aekeus did a few tests and had success with link being updated. I'll build an official package and verify a few scenarios myself

Auditors: @aekeus, @srirambv, @bbondy

package.json

@@ -138,7 +138,7 @@
     "electron-builder": "^2.3.1",
     "electron-packager": "brave/electron-packager",
     "electron-rebuild": "^1.1.1",
-    "electron-winstaller": "2.4.0",
+    "electron-winstaller": "2.5.1",
     "empty-port": "0.0.2",
     "flow-bin": "^0.22.1",
     "gulp": "^3.9.0",