chore(deps): update dependency yargs to v16 (#500)

Author: renovate-bot

video-intelligence/package.json

@@ -16,7 +16,7 @@
   },
   "dependencies": {
     "@google-cloud/video-intelligence": "^3.1.1",
-    "yargs": "^15.0.0"
+    "yargs": "^16.0.0"
   },
   "devDependencies": {
     "chai": "^4.2.0",