fix(package): update expect to version 22.0.3

Closes #419

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
     "axios": "^0.17.0",
     "cheerio": "~0.20.0",
     "debug": "^2.2.0",
-    "expect": "1.20.2",
+    "expect": "22.0.3",
     "express": "^4.13.4",
     "express-metrics": "^1.1.0",
     "file": "~0.2.2",