chore(package): update grunt-saucelabs to version 9.0.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -38,7 +38,7 @@
     "grunt-html": "5.0.1",
     "grunt-jsbeautifier": "0.2.13",
     "grunt-prompt": "1.3.3",
-    "grunt-saucelabs": "8.6.2",
+    "grunt-saucelabs": "9.0.0",
     "grunt-shell": "1.3.1",
     "grunt-text-replace": "0.4.0",
     "grunt-umd": "2.3.6",