Bump @testing-library/react from 12.0.0 to 12.1.0 in /desktop (#2887)

Summary:
Bumps [testing-library/react](https://github.com/testing-library/react-testing-library) from 12.0.0 to 12.1.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/testing-library/react-testing-library/releases"><code>@​testing-library/react</code>'s releases</a>.</em></p>
<blockquote>
<h2>v12.1.0</h2>
<h1><a href="https://github.com/testing-library/react-testing-library/compare/v12.0.0...v12.1.0">12.1.0</a> (2021-09-11)</h1>
<h3>Features</h3>
<ul>
<li>improve JSDocs for RenderOptions (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/909">https://github.com/facebook/flipper/issues/909</a>) (<a href="fbacb0da99">fbacb0d</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="3325061cac"><code>3325061</code></a> docs: add ImADrafter as a contributor for doc (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/961">https://github.com/facebook/flipper/issues/961</a>)</li>
<li><a href="fbacb0da99"><code>fbacb0d</code></a> feat: improve JSDocs for RenderOptions (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/909">https://github.com/facebook/flipper/issues/909</a>)</li>
<li><a href="071a6fdc1d"><code>071a6fd</code></a> test: Format codebase with prettier (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/959">https://github.com/facebook/flipper/issues/959</a>)</li>
<li><a href="68fd459149"><code>68fd459</code></a> test: Ensure broken node 16.9.0 isn't used (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/960">https://github.com/facebook/flipper/issues/960</a>)</li>
<li><a href="8f3bd3c34f"><code>8f3bd3c</code></a> docs: add leschdom as a contributor for doc (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/941">https://github.com/facebook/flipper/issues/941</a>)</li>
<li><a href="801edaa0d6"><code>801edaa</code></a> docs(CONTRIBUTING): update links (<a href="https://github-redirect.dependabot.com/testing-library/react-testing-library/issues/932">https://github.com/facebook/flipper/issues/932</a>)</li>
<li>See full diff in <a href="https://github.com/testing-library/react-testing-library/compare/v12.0.0...v12.1.0">compare view</a></li>
</ul>
</details>
<br />

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</details>

Pull Request resolved: https://github.com/facebook/flipper/pull/2887

Reviewed By: mweststrate

Differential Revision: D31203906

Pulled By: passy

fbshipit-source-id: a4d9c57c36dc5949396df841742a17f51a42c079

desktop/app/package.json

@@ -84,7 +84,7 @@
   },
   "devDependencies": {
     "@testing-library/dom": "^8.2.0",
-    "@testing-library/react": "^12.0.0",
+    "@testing-library/react": "^12.1.0",
     "@types/lodash.memoize": "^4.1.6",
     "@types/split2": "^3.2.1",
     "flipper-test-utils": "0.0.0",