Update utoipa requirement from 3.3.0 to 4.1.0 (#51)

Updates the requirements on [utoipa](https://github.com/juhaku/utoipa)
to permit the latest version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/juhaku/utoipa/releases">utoipa's
releases</a>.</em></p>
<blockquote>
<h2>utoipa-4.1.0</h2>
<h2>What's New 💎 🆕 🎉</h2>
<ul>
<li>(048d898) Update next versions</li>
<li>(5d96e30) Support <code>#[serde(flatten)]</code> for maps. (<a
href="https://redirect.github.com/juhaku/utoipa/issues/799">#799</a>) <a
href="https://github.com/blp"><code>@​blp</code></a></li>
<li>(2f89c69) feat: add HashSet and BTreeSet (<a
href="https://redirect.github.com/juhaku/utoipa/issues/791">#791</a>) <a
href="https://github.com/ctron"><code>@​ctron</code></a></li>
<li>(f43efc7) add openapi extensions &quot;x-tokenName&quot; (<a
href="https://redirect.github.com/juhaku/utoipa/issues/763">#763</a>) <a
href="https://github.com/lucasgranberg"><code>@​lucasgranberg</code></a></li>
<li>(50db1b0) Update utoipa versions</li>
</ul>
<h4>Full <a
href="https://github.com/juhaku/utoipa/compare/utoipa-4.0.0...utoipa-4.1.0">change
log</a></h4>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/juhaku/utoipa/commit/048d8984637c86152e0e57eed11f3b4968b20957"><code>048d898</code></a>
Update next versions</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/5d96e306479fece4db0436921490c50d4c525139"><code>5d96e30</code></a>
Support <code>#[serde(flatten)]</code> for maps. (<a
href="https://redirect.github.com/juhaku/utoipa/issues/799">#799</a>)</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/83356da9307b95437b9383038349d66a15126a31"><code>83356da</code></a>
Update README.md</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/253700530844a63071c669653102664b59bbd957"><code>2537005</code></a>
Update README.md</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/83ab5f982f4ff4ee8b0fff929318d32d70d026ec"><code>83ab5f9</code></a>
Update README.md</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/e79415371731e8e358b2774e9180f0b5a7bbf66f"><code>e794153</code></a>
Update README.md</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/2f89c69f07fb72fdd5dd80562468f173acd6c2a6"><code>2f89c69</code></a>
feat: add HashSet and BTreeSet (<a
href="https://redirect.github.com/juhaku/utoipa/issues/791">#791</a>)</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/f43efc76b5da6b8f5799e82a94735972079025a3"><code>f43efc7</code></a>
add openapi extensions &quot;x-tokenName&quot; (<a
href="https://redirect.github.com/juhaku/utoipa/issues/763">#763</a>)</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/50db1b0f9ba617a942c78481275461c714e12660"><code>50db1b0</code></a>
Update utoipa versions</li>
<li><a
href="https://github.com/juhaku/utoipa/commit/21dd69d45add4450fbf2a29276544d286db093e2"><code>21dd69d</code></a>
Update REAMDE.md</li>
<li>Additional commits viewable in <a
href="https://github.com/juhaku/utoipa/compare/utoipa-3.3.0...utoipa-4.1.0">compare
view</a></li>
</ul>
</details>
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</details>

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Signed-off-by: dependabot[bot] <[email protected]>
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engine/Cargo.toml

@@ -29,6 +29,6 @@ tokio = { version = "1.29.1", features = ["macros"] }
 tower-http = { version = "0.5.0", features = ["cors"] }
 tracing = "0.1.37"
 tracing-subscriber = "0.3.17"
-utoipa = { version = "3.3.0", features = ["axum_extras"] }
+utoipa = { version = "4.1.0", features = ["axum_extras"] }
 utoipa-swagger-ui = { version = "5.0.0", features = ["axum"] }
 xml = "0.8.10"