chore(deps): update dependency should to v13.2.2

Author: renovate-bot

package.json

@@ -45,7 +45,7 @@
     "phantomjs-prebuilt": "2.1.16",
     "prettier": "1.13.7",
     "semver": "5.5.0",
-    "should": "13.2.1",
+    "should": "13.2.2",
     "ts-loader": "4.4.2",
     "tslint": "5.11.0",
     "tslint-config-prettier": "1.14.0",