Bump @typescript-eslint/parser from 4.20.0 to 4.21.0 in /flipper-js-client-sdk (#2177)

Summary:
Bumps [typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 4.20.0 to 4.21.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/typescript-eslint/typescript-eslint/releases"><code>@​typescript-eslint/parser</code>'s releases</a>.</em></p>
<blockquote>
<h2>v4.21.0</h2>
<h1><a href="https://github.com/typescript-eslint/typescript-eslint/compare/v4.20.0...v4.21.0">4.21.0</a> (2021-04-05)</h1>
<h3>Bug Fixes</h3>
<ul>
<li><strong>eslint-plugin:</strong> [no-type-alias] consider <code>keyof</code> as an alias (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3242">#3242</a>) (<a href="329ef02309">329ef02</a>)</li>
<li><strong>eslint-plugin:</strong> [no-unnecessary-type-assertion] correct bad fix for angle bracket assertion (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3244">#3244</a>) (<a href="265a039c7e">265a039</a>)</li>
<li><strong>eslint-plugin:</strong> [restrict-plus-operands] consider template literal types as strings (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3234">#3234</a>) (<a href="ccfd68e365">ccfd68e</a>)</li>
<li><strong>eslint-plugin:</strong> [strict-boolean-expressions] account for truthy literals (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3236">#3236</a>) (<a href="0913f40c87">0913f40</a>)</li>
<li><strong>eslint-plugin:</strong> always ignore assignments in no-unnecessary-type-assertion (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3235">#3235</a>) (<a href="02214768a3">0221476</a>)</li>
</ul>
<h3>Features</h3>
<ul>
<li><strong>eslint-plugin:</strong> [no-unsafe-argument] add rule (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3256">#3256</a>) (<a href="b1aa7dc697">b1aa7dc</a>), closes <a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/791">https://github.com/facebook/flipper/issues/791</a></li>
<li><strong>eslint-plugin:</strong> [no-unsafe-call][no-unsafe-member-access] improve report messages for <code>this</code> for <code>noImplicitThis</code> (<a href="https://github-redirect.dependabot.com/typescript-eslint/typescript-eslint/issues/3199">#3199</a>) (<a href="b1b26c4843">b1b26c4</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/parser/CHANGELOG.md"><code>@​typescript-eslint/parser</code>'s changelog</a>.</em></p>
<blockquote>
<h1><a href="https://github.com/typescript-eslint/typescript-eslint/compare/v4.20.0...v4.21.0">4.21.0</a> (2021-04-05)</h1>
<p><strong>Note:</strong> Version bump only for package <code>@​typescript-eslint/parser</code></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="3181b32d57"><code>3181b32</code></a> chore: publish v4.21.0</li>
<li>See full diff in <a href="https://github.com/typescript-eslint/typescript-eslint/commits/v4.21.0/packages/parser">compare view</a></li>
</ul>
</details>
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</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/2177

Reviewed By: passy

Differential Revision: D27763553

Pulled By: nikoant

fbshipit-source-id: 52b216e9835800989b6763e50d9c2937054bb07b

flipper-js-client-sdk/package.json

@@ -28,7 +28,7 @@
   "readmeFilename": "README.md",
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^4.21.0",
-    "@typescript-eslint/parser": "^4.20.0",
+    "@typescript-eslint/parser": "^4.21.0",
     "ansi-to-html": "^0.6.3",
     "babel-eslint": "^10.0.1",
     "eslint": "^7.24.0",