Bump @oclif/plugin-help from 2.2.3 to 5.2.16 (#40)

Bumps [@oclif/plugin-help](https://github.com/oclif/plugin-help) from 2.2.3 to 5.2.16.
- [Release notes](https://github.com/oclif/plugin-help/releases)
- [Changelog](https://github.com/oclif/plugin-help/blob/main/CHANGELOG.md)
- [Commits](oclif/plugin-help@v2.2.3...5.2.16)

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

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

package.json

@@ -16,7 +16,7 @@
     "@babel/core": "^7.3.3",
     "@babel/preset-env": "^7.3.1",
     "@oclif/dev-cli": "^1",
-    "@oclif/plugin-help": "^2.1.4",
+    "@oclif/plugin-help": "^5.2.16",
     "@oclif/test": "^1",
     "babel-jest": "^24.1.0",
     "babel-runtime": "^6.26.0",