chore(package): update puppeteer to version 2.0.0

Author: greenkeeper[bot]

package.json

@@ -96,7 +96,7 @@
     "mocha": "^6.2.2",
     "prettier": "^1.18.2",
     "publish-please": "^5.5.1",
-    "puppeteer": "^1.20.0",
+    "puppeteer": "^2.0.0",
     "reflect-metadata": "^0.1.13",
     "remap-istanbul": "^0.13.0",
     "rimraf": "^3.0.0",