Bump commander from 6.2.0 to 6.2.1

Bumps [commander](https://github.com/tj/commander.js) from 6.2.0 to 6.2.1.
- [Release notes](https://github.com/tj/commander.js/releases)
- [Changelog](https://github.com/tj/commander.js/blob/master/CHANGELOG.md)
- [Commits](tj/commander.js@v6.2.0...v6.2.1)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -1210,9 +1210,9 @@ commander@^4.0.1:
   integrity sha512-IPF4ouhCP+qdlcmCedhxX4xiGBPyigb8v5NeUp+0LyhwLgxMqyp3S0vl7TAPfS/hiP7FC3caI/PB9lTmP8r1NA==
 
 commander@^6.0.0, commander@^6.2.0:
-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.0.tgz#b990bfb8ac030aedc6d11bc04d1488ffef56db75"
-  integrity sha512-zP4jEKbe8SHzKJYQmq8Y9gYjtO/POJLgIdKgV7B9qNmABVFVc+ctqSX6iXh4mCpJfRBOabiZ2YKPg8ciDw6C+Q==
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.1.tgz#0792eb682dfbc325999bb2b84fddddba110ac73c"
+  integrity sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==
 
 common-path-prefix@^1.0.0:
   version "1.0.0"