Bump commander from 5.1.0 to 6.0.0 (#1543)

Bumps [commander](https://github.com/tj/commander.js) from 5.1.0 to 6.0.0.
- [Release notes](https://github.com/tj/commander.js/releases)
- [Changelog](https://github.com/tj/commander.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/tj/commander.js/compare/v5.1.0...v6.0.0)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -82,7 +82,7 @@
     "adf-tslint-rules": "0.0.7",
     "ajv-cli": "^3.1.0",
     "codelyzer": "^6.0.0",
-    "commander": "^5.0.0",
+    "commander": "^6.0.0",
     "cpr": "^3.0.1",
     "cspell": "^4.0.63",
     "dotenv": "^8.2.0",