Bump core from 400f0e1 to 46d50af (Azure#866)

Bumps [core](https://github.com/microsoft/typespec) from `400f0e1` to
`46d50af`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/microsoft/typespec/commit/46d50af478517059abeb1db34793eb5c9a227ab9"><code>46d50af</code></a>
Fix vitest not reloading JS files (<a
href="https://github.com/microsoft/typespec/issues/3395">#3395</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/e56969ca8acd7c905c8a157f05288311cc054154"><code>e56969c</code></a>
Reorganize folders and drop xml for now (<a
href="https://github.com/microsoft/typespec/issues/3394">#3394</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/94c6d1ceedd266847dc1c9a2703035f090ab6fbf"><code>94c6d1c</code></a>
Do not add <code>needs-area</code> if issue already had an area (<a
href="https://github.com/microsoft/typespec/issues/3390">#3390</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/940015c91ee99a1345612132c8b74dc250617fe5"><code>940015c</code></a>
Validate typescript eng scripts &amp; use patterns for pr label triage
(<a
href="https://github.com/microsoft/typespec/issues/3381">#3381</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/7223624826ff1076d156ebc1dbe39b166adfe5e1"><code>7223624</code></a>
Add 'show output channel' command in vscode extension (<a
href="https://github.com/microsoft/typespec/issues/3385">#3385</a>)</li>
<li>See full diff in <a
href="https://github.com/microsoft/typespec/compare/400f0e19a4adb36a20a623b3a08b77f2cd6725d6...46d50af478517059abeb1db34793eb5c9a227ab9">compare
view</a></li>
</ul>
</details>
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>