chore(package): update puppeteer to version 3.3.0

Closes #3

Author: greenkeeper[bot]

package.json

@@ -10,7 +10,7 @@
     "body-parser": "^1.19.0",
     "express": "^4.17.1",
     "heya-unit": "^0.3.0",
-    "puppeteer": "^2.0.0",
+    "puppeteer": "^3.3.0",
     "puppeteer-firefox": "^0.5.0"
   },
   "scripts": {