Bump core from 8ed1d82 to 9726b3d (#226)

Bumps [core](https://github.com/microsoft/typespec) from `8ed1d82` to
`9726b3d`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/microsoft/typespec/commit/9726b3d8cc043bdfc0ddaeb327c40f1927ff1f7a"><code>9726b3d</code></a>
OpenAPI3: Fix more issues with inline properties (<a
href="https://github.com/microsoft/typespec/issues/2884">#2884</a>)</li>
<li>See full diff in <a
href="https://github.com/microsoft/typespec/compare/8ed1d82e7ccb0a8b72ae902149b86d68ac684872...9726b3d8cc043bdfc0ddaeb327c40f1927ff1f7a">compare
view</a></li>
</ul>
</details>
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>