fix(deps): update dependency google-auth-library to v4 (#705)

renovate[bot] · JustinBeckwith · commit 2b13344c3eb8 · 2019-05-09T16:56:50.000Z
diff --git a/samples/puppeteer/package.json b/samples/puppeteer/package.json
@@ -11,7 +11,7 @@
   },
   "license": "Apache-2.0",
   "dependencies": {
-    "google-auth-library": "^3.0.0",
+    "google-auth-library": "^4.0.0",
     "puppeteer": "^1.0.0"
   }
 }
