chore(dev-deps): bump @oclif/plugin-help from 6.2.20 to 6.2.21 (#873)

Bumps [@oclif/plugin-help](https://github.com/oclif/plugin-help) from 6.2.20 to 6.2.21.
- [Release notes](https://github.com/oclif/plugin-help/releases)
- [Changelog](https://github.com/oclif/plugin-help/blob/main/CHANGELOG.md)
- [Commits](oclif/plugin-help@6.2.20...6.2.21)

---
updated-dependencies:
- dependency-name: "@oclif/plugin-help"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

yarn.lock

@@ -1477,9 +1477,9 @@
     wrap-ansi "^7.0.0"
 
 "@oclif/plugin-help@^6", "@oclif/plugin-help@^6.2.20":
-  version "6.2.20"
-  resolved "https://registry.yarnpkg.com/@oclif/plugin-help/-/plugin-help-6.2.20.tgz#05de43a710f038419d3ded11a59e8481408a9e9e"
-  integrity sha512-2l4A/erCAdBWmJwb1LJ7TvSMbBUQbGhIzkdHZb5DMgFJC+Nwfeol5YojqRMeciyGkoqmWPBGENwr0LJgZp2skw==
+  version "6.2.21"
+  resolved "https://registry.yarnpkg.com/@oclif/plugin-help/-/plugin-help-6.2.21.tgz#a1444a9faee8ca72c135c9c3b5ba500a18fd07f1"
+  integrity sha512-nUAnIR96QJvAAFzdJoq9iqInuwY9nxURNaAiGWGUtW5HgrwJOmoY1LqcobkzW89RH3NONtdWmc74sIupWmLtNw==
   dependencies:
     "@oclif/core" "^4"