chore: bump docengine from fd48da3 to c06c2aa (#2805)

Bumps [docengine](https://github.com/coreweave/docengine) from `fd48da3`
to `c06c2aa`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/coreweave/docengine/commit/c06c2aa6ffc5b314bfbfd3b7706935ea67a900d2"><code>c06c2aa</code></a>
docs: SDK reference, how-to guides, and MkDocs Material site (<a
href="https://redirect.github.com/coreweave/docengine/issues/187">#187</a>)</li>
<li><a
href="https://github.com/coreweave/docengine/commit/28d94000a466c524c5d7bc3f69647af3ac59aba4"><code>28d9400</code></a>
Single-source the version + add CI enforcement (<a
href="https://redirect.github.com/coreweave/docengine/issues/186">#186</a>)</li>
<li><a
href="https://github.com/coreweave/docengine/commit/cd6c4b9120e0c693c62ab7a8025857e33561c9e9"><code>cd6c4b9</code></a>
chore: Bump the &quot;python&quot; group with 1 update across multiple
ecosystems (<a
href="https://redirect.github.com/coreweave/docengine/issues/185">#185</a>)</li>
<li><a
href="https://github.com/coreweave/docengine/commit/f7b15e0704ae3d4cc915db133617649d77dc9007"><code>f7b15e0</code></a>
Bump version in UV (<a
href="https://redirect.github.com/coreweave/docengine/issues/184">#184</a>)</li>
<li>See full diff in <a
href="https://github.com/coreweave/docengine/compare/fd48da3678a8c7a627b3758503fd04f5697762e7...c06c2aa6ffc5b314bfbfd3b7706935ea67a900d2">compare
view</a></li>
</ul>
</details>
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