chore: Upgrade 'googleapis' to v50

Author: medikoo

package.json

@@ -43,7 +43,7 @@
     "bluebird": "^3.7.2",
     "chalk": "^3.0.0",
     "fs-extra": "^8.1.0",
-    "googleapis": "^48.0.0",
+    "googleapis": "^50.0.0",
     "lodash": "^4.17.15"
   },
   "devDependencies": {