Bump core from 02ed01e to fa8b959 (#345)

Bumps [core](https://github.com/microsoft/typespec) from `02ed01e` to
`fa8b959`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/microsoft/typespec/commit/fa8b9594917999be735c307a3ee80fffb246f252"><code>fa8b959</code></a>
Feature: Spread <code>Record\&lt;T&gt;</code> (<a
href="https://github.com/microsoft/typespec/issues/2920">#2920</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/9654dd836bc078d6579cce9f86408cc1514d1bd1"><code>9654dd8</code></a>
[OpenAPI3 Emitter] Add option to map <code>safeint</code> to
<code>double-int</code> (<a
href="https://github.com/microsoft/typespec/issues/2933">#2933</a>)</li>
<li>See full diff in <a
href="https://github.com/microsoft/typespec/compare/02ed01e79bde5d90a6bcda8d01b44f0f5b9d0b5b...fa8b9594917999be735c307a3ee80fffb246f252">compare
view</a></li>
</ul>
</details>
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Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>