Bump tests/perf/s2n-quic from 26e2402 to fc9b388 (model-checking#4362)

Bumps [tests/perf/s2n-quic](https://github.com/aws/s2n-quic) from
`26e2402` to `fc9b388`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/aws/s2n-quic/commit/fc9b3887ebae96bf7407ef77b120d59e34b13bdc"><code>fc9b388</code></a>
docs(s2n-events): Fix event-generator readme path (<a
href="https://redirect.github.com/aws/s2n-quic/issues/2798">#2798</a>)</li>
<li><a
href="https://github.com/aws/s2n-quic/commit/89f0c1659cf1e204b4e204a125845bace2b65ec7"><code>89f0c16</code></a>
docs(s2n-events): Update s2n-events docs with generate script info (<a
href="https://redirect.github.com/aws/s2n-quic/issues/2797">#2797</a>)</li>
<li><a
href="https://github.com/aws/s2n-quic/commit/d35c22fa7cc9683666eb75f204130203062f79f4"><code>d35c22f</code></a>
refactor(s2n-events): Move s2n-quic event generation program out of
s2n-event...</li>
<li><a
href="https://github.com/aws/s2n-quic/commit/fdf958632f475569705e5d6f81ae34ad62f0215b"><code>fdf9586</code></a>
Expose the acceptor runtime (<a
href="https://redirect.github.com/aws/s2n-quic/issues/2778">#2778</a>)</li>
<li>See full diff in <a
href="https://github.com/aws/s2n-quic/compare/26e2402eea1ea8c079705a58bbf5327f358521f0...fc9b3887ebae96bf7407ef77b120d59e34b13bdc">compare
view</a></li>
</ul>
</details>
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