chore(deps-dev): bump typescript from 3.9.8 to 3.9.9 (#352)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.8 to 3.9.9.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/Microsoft/TypeScript/releases">typescript's releases</a>.</em></p>
<blockquote>
<h2>TypeScript 3.9.9</h2>
<p>This release contains a fix for <a href="https://github-redirect.dependabot.com/microsoft/TypeScript/issues/42718">an issue when language service plugins have no specified name</a>.</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/microsoft/TypeScript/commit/9b778b3494be00d70b351833228e8e2087d23ac4"><code>9b778b3</code></a> Bump version to 3.9.9 and LKG</li>
<li><a href="https://github.com/microsoft/TypeScript/commit/ee713556c69110f3d63fdbca07cb33e8c42577dd"><code>ee71355</code></a> Handle if plugin doesnt specify name (<a href="https://github-redirect.dependabot.com/Microsoft/TypeScript/issues/42722">#42722</a>)</li>
<li>See full diff in <a href="https://github.com/Microsoft/TypeScript/compare/v3.9.8...v3.9.9">compare view</a></li>
</ul>
</details>
<br />


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</details>

Author: mergify[bot]

yarn.lock

@@ -5883,9 +5883,9 @@ typedarray@^0.0.6:
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
 typescript@^3.9.5, typescript@~3.9.7:
-  version "3.9.8"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.8.tgz#7d937ba4e4044af7fa83d127b982f8f61ca816a4"
-  integrity sha512-nDbnFkUZZjkQ92qwKX+C+jtk4OGfU8H9toSEs3uAsl8cxLjG2sqQm6leF/pLWvm9FAEJ6KHkYMAbHYaY2ITeVg==
+  version "3.9.9"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.9.tgz#e69905c54bc0681d0518bd4d587cc6f2d0b1a674"
+  integrity sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==
 
 uglify-js@^3.1.4:
   version "3.9.4"