Update @oclif/plugin-help in group pkg to the latest version � (#1069)

Summary:
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## The dependency [oclif/plugin-help](https://github.com/oclif/plugin-help) was updated from `2.2.3` to `3.0.0`.
This version is **not covered** by your **current version range**.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

 ---

**Publisher:** [chadian](https://www.npmjs.com/~chadian)
**License:** MIT

[Find out more about this release](https://github.com/oclif/plugin-help).

 ---

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  <summary>FAQ and help</summary>

  There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).
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Your [Greenkeeper](https://greenkeeper.io) bot 🌴
Pull Request resolved: https://github.com/facebook/flipper/pull/1069

Reviewed By: nikoant

Differential Revision: D21278324

Pulled By: passy

fbshipit-source-id: 6217e4d078341d15795b454b47b3ce482a0bfeeb

desktop/pkg/package.json

@@ -15,7 +15,7 @@
     "@oclif/command": "^1",
     "@oclif/config": "^1",
     "@oclif/parser": "^3",
-    "@oclif/plugin-help": "^2",
+    "@oclif/plugin-help": "^3.0.0",
     "@oclif/plugin-warn-if-update-available": "^1.7.0",
     "ajv": "^6.12.2",
     "ajv-errors": "^1.0.1",

desktop/yarn.lock

@@ -1606,7 +1606,7 @@
     "@nodelib/fs.scandir" "2.1.3"
     fastq "^1.6.0"
 
-"@oclif/command@^1", "@oclif/command@^1.5.1", "@oclif/command@^1.5.10", "@oclif/command@^1.5.13":
+"@oclif/command@^1", "@oclif/command@^1.5.1", "@oclif/command@^1.5.10", "@oclif/command@^1.5.13", "@oclif/command@^1.5.20":
   version "1.5.20"
   resolved "https://registry.yarnpkg.com/@oclif/command/-/command-1.5.20.tgz#bb0693586d7d66a457c49b719e394c02ff0169a7"
   integrity sha512-lzst5RU/STfoutJJv4TLE/cm1WtW3xy6Aqvqy3r1lPsGdNifgbEq4dCOYyc/ZEuhV/IStQLDFTnAlqTdolkz1Q==
@@ -1618,7 +1618,7 @@
     debug "^4.1.1"
     semver "^5.6.0"
 
-"@oclif/config@^1", "@oclif/config@^1.12.12", "@oclif/config@^1.12.8":
+"@oclif/config@^1", "@oclif/config@^1.12.12", "@oclif/config@^1.12.8", "@oclif/config@^1.15.1":
   version "1.15.1"
   resolved "https://registry.yarnpkg.com/@oclif/config/-/config-1.15.1.tgz#39950c70811ab82d75bb3cdb33679ed0a4c21c57"
   integrity sha512-GdyHpEZuWlfU8GSaZoiywtfVBsPcfYn1KuSLT1JTfvZGpPG6vShcGr24YZ3HG2jXUFlIuAqDcYlTzOrqOdTPNQ==
@@ -1685,6 +1685,21 @@
     widest-line "^2.0.1"
     wrap-ansi "^4.0.0"
 
+"@oclif/plugin-help@^3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@oclif/plugin-help/-/plugin-help-3.0.0.tgz#7d6433d74b0473a43797c6e0468b503470f23b50"
+  integrity sha512-mrV1O1VXy+ssW0kmIvFYkuEEPYZWKpyqydyHbKa316esAHatsZlrw6cRItf3TuKHTAqeGuXPctPV4mO2e21F9w==
+  dependencies:
+    "@oclif/command" "^1.5.20"
+    "@oclif/config" "^1.15.1"
+    chalk "^2.4.1"
+    indent-string "^4.0.0"
+    lodash.template "^4.4.0"
+    string-width "^3.0.0"
+    strip-ansi "^5.0.0"
+    widest-line "^2.0.1"
+    wrap-ansi "^4.0.0"
+
 "@oclif/plugin-warn-if-update-available@^1.7.0":
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/@oclif/plugin-warn-if-update-available/-/plugin-warn-if-update-available-1.7.0.tgz#5a72abe39ce0b831eb4ae81cb64eb4b9f3ea424a"