fix(deps): update dependency yargs to v16 (#70)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

npm-shrinkwrap.json

@@ -26,7 +26,7 @@
   "dependencies": {
     "glob": "7.1.6",
     "line-reader": "0.4.0",
-    "yargs": "15.4.1",
+    "yargs": "16.2.0",
     "validator": "13.6.0",
     "superagent": "6.1.0"
   },