chore(deps): update dependency @types/node to v16 (#8)

Author: renovate-bot

packages/google-cloud-video-stitcher/package.json

@@ -43,7 +43,7 @@
   },
   "devDependencies": {
     "@types/mocha": "^9.0.0",
-    "@types/node": "^14.14.44",
+    "@types/node": "^16.0.0",
     "@types/sinon": "^10.0.0",
     "c8": "^7.7.2",
     "gts": "^3.1.0",