Bump ws and @pm2/agent (#51)

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[//]: # (dependabot-end)

Bumps [ws](https://github.com/websockets/ws) and @pm2/agent. These
dependencies needed to be updated together.
Updates `ws` from 7.5.9 to 7.5.10
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/websockets/ws/releases">ws's
releases</a>.</em></p>
<blockquote>
<h2>7.5.10</h2>
<h1>Bug fixes</h1>
<ul>
<li>Backported e55e5106 to the 7.x release line (22c28763).</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/websockets/ws/commit/d962d70649e393841ee1ed726a8f7ffbe90d0c06"><code>d962d70</code></a>
[dist] 7.5.10</li>
<li><a
href="https://github.com/websockets/ws/commit/22c28763234aa75a7e1b76f5c01c181260d7917f"><code>22c2876</code></a>
[security] Fix crash when the Upgrade header cannot be read (<a
href="https://redirect.github.com/websockets/ws/issues/2231">#2231</a>)</li>
<li>See full diff in <a
href="https://github.com/websockets/ws/compare/7.5.9...7.5.10">compare
view</a></li>
</ul>
</details>
<br />

Updates `@pm2/agent` from 2.0.1 to 2.0.4


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