fix: Unhandled rejection is thrown when disconnection iOS Device

In case iOS device is disconnected during LiveSync an unhandled rejection is thrown. The problem is in ios-device-lib, so update it to latest version - 0.4.12, where the issue is fixed.
Changelog: https://github.com/telerik/ios-device-lib/releases/tag/v0.4.12

Author: rosen-vladimirov

npm-shrinkwrap.json

@@ -41,7 +41,7 @@
     "gaze": "1.1.0",
     "iconv-lite": "0.4.11",
     "inquirer": "0.9.0",
-    "ios-device-lib": "0.4.11",
+    "ios-device-lib": "0.4.12",
     "ios-mobileprovision-finder": "1.0.10",
     "ios-sim-portable": "3.4.1",
     "jimp": "0.2.28",