Bump y18n from 4.0.0 to 4.0.3 in /desktop (#2442)

Summary:
Bumps [y18n](https://github.com/yargs/y18n) from 4.0.0 to 4.0.3.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/yargs/y18n/blob/y18n-v4.0.3/CHANGELOG.md">y18n's changelog</a>.</em></p>
<blockquote>
<h3><a href="https://www.github.com/yargs/y18n/compare/y18n-v4.0.2...y18n-v4.0.3">4.0.3</a> (2021-04-07)</h3>
<h3>Bug Fixes</h3>
<ul>
<li><strong>release:</strong> 4.x.x should not enforce Node 10 (<a href="https://github-redirect.dependabot.com/yargs/y18n/issues/126">https://github.com/facebook/flipper/issues/126</a>) (<a href="1e21a536e9">1e21a53</a>)</li>
</ul>
<h3>4.0.1 (2020-11-30)</h3>
<h3>Bug Fixes</h3>
<ul>
<li>address prototype pollution issue (<a href="https://github-redirect.dependabot.com/yargs/y18n/issues/108">https://github.com/facebook/flipper/issues/108</a>) (<a href="a9ac604abf">a9ac604</a>)</li>
</ul>
<p><!-- raw HTML omitted --><!-- raw HTML omitted --></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="0aa97c508e"><code>0aa97c5</code></a> chore: release 4.x.x (<a href="https://github-redirect.dependabot.com/yargs/y18n/issues/128">https://github.com/facebook/flipper/issues/128</a>)</li>
<li><a href="a8e7f04f80"><code>a8e7f04</code></a> build(release-please): configure branch properly (<a href="https://github-redirect.dependabot.com/yargs/y18n/issues/127">https://github.com/facebook/flipper/issues/127</a>)</li>
<li><a href="1e21a536e9"><code>1e21a53</code></a> fix(release): 4.x.x should not enforce Node 10 (<a href="https://github-redirect.dependabot.com/yargs/y18n/issues/126">https://github.com/facebook/flipper/issues/126</a>)</li>
<li><a href="8dc75802f3"><code>8dc7580</code></a> docs: update CHANGELOG</li>
<li><a href="7de58ca0d3"><code>7de58ca</code></a> fix: address prototype pollution issue</li>
<li>See full diff in <a href="https://github.com/yargs/y18n/compare/v4.0.0...y18n-v4.0.3">compare view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a href="https://www.npmjs.com/~oss-bot">oss-bot</a>, a new releaser for y18n since your current version.</p>
</details>
<br />

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=y18n&package-manager=npm_and_yarn&previous-version=4.0.0&new-version=4.0.3)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/2442

Reviewed By: priteshrnandgaonkar

Differential Revision: D29069477

Pulled By: passy

fbshipit-source-id: bacd857c2fc320491346ddf3408f7816a0edc961

desktop/yarn.lock

@@ -13363,9 +13363,9 @@ xtend@^4.0.0, xtend@~4.0.1:
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
 y18n@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
-  integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.3.tgz#b5f259c82cd6e336921efd7bfd8bf560de9eeedf"
+  integrity sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==
 
 y18n@^5.0.5:
   version "5.0.8"