fix(package): update puppeteer to version 2.1.1

Closes #132

Author: greenkeeper[bot]

package.json

@@ -48,7 +48,7 @@
     "npm": "^6.0.0",
     "path": "^0.12.7",
     "pm2": "^3.0.0",
-    "puppeteer": "^1.0.0",
+    "puppeteer": "^2.1.1",
     "raven": "^2.4.2",
     "request-promise-native": "^1.0.5",
     "sequelize": "^4.28.6",