Bump yargs from 15.4.0 to 16.2.0

Bumps [yargs](https://github.com/yargs/yargs) from 15.4.0 to 16.2.0.
- [Release notes](https://github.com/yargs/yargs/releases)
- [Changelog](https://github.com/yargs/yargs/blob/master/CHANGELOG.md)
- [Commits](yargs/yargs@v15.4.0...v16.2.0)

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

Author: dependabot[bot]

package-lock.json

@@ -24,7 +24,7 @@
     "debug": "^4.1.1",
     "prompt-confirm": "^2.0.4",
     "string.prototype.replaceall": "^1.0.3",
-    "yargs": "^15.4.0"
+    "yargs": "^16.2.0"
   },
   "bin": {
     "github-default-branch": "./bin/github-default-branch"