Bump yargs from 15.4.1 to 16.0.3

Bumps [yargs](https://github.com/yargs/yargs) from 15.4.1 to 16.0.3.
- [Release notes](https://github.com/yargs/yargs/releases)
- [Changelog](https://github.com/yargs/yargs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yargs/yargs/compare/v15.4.1...v16.0.3)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -78,7 +78,7 @@
     "through2": "^4.0.2",
     "typescript-closure-tools": "^0.0.7",
     "webdriverio": "^5.22.4",
-    "yargs": "^15.4.1"
+    "yargs": "^16.0.3"
   },
   "dependencies": {
     "jsdom": "^15.2.1"