Bump core from 7517c91 to 4c63c99 (Azure#733)

Bumps [core](https://github.com/microsoft/typespec) from `7517c91` to
`4c63c99`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/microsoft/typespec/commit/4c63c992922f5acbbc0a4a90f4e054c5967d60ac"><code>4c63c99</code></a>
[Microsoft Generator CSharp] Generate properties for Model types (<a
href="https://redirect.github.com/microsoft/typespec/issues/3221">#3221</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/e2adc0709b06ccdfa39ae4205b287723a293fc1a"><code>e2adc07</code></a>
Fix generate script (<a
href="https://redirect.github.com/microsoft/typespec/issues/3220">#3220</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/07b340a6dc29fbab971693f8de59538386c2a47e"><code>07b340a</code></a>
Fix: <code>@path</code> property should be included in unreachable
models (<a
href="https://redirect.github.com/microsoft/typespec/issues/3218">#3218</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/fe51f0529794a833707518d759df6df37747d290"><code>fe51f05</code></a>
Recover from bad op is reference in template (<a
href="https://redirect.github.com/microsoft/typespec/issues/3216">#3216</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/65409bef3b6e475e7a5b0a1a4d601b8fec394233"><code>65409be</code></a>
Fix csharp emitter tsconfig (<a
href="https://redirect.github.com/microsoft/typespec/issues/3219">#3219</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/e09af82db68a8920e7917d0ed371375167e8560a"><code>e09af82</code></a>
Fix: augmenting template property didn't resolve declaration (<a
href="https://redirect.github.com/microsoft/typespec/issues/3212">#3212</a>)</li>
<li><a
href="https://github.com/microsoft/typespec/commit/36c339b4321ebc61414126b0aa29d27c8fc96af2"><code>36c339b</code></a>
Fix tsp init hanging when done due to unclosed connection (<a
href="https://redirect.github.com/microsoft/typespec/issues/3185">#3185</a>)</li>
<li>See full diff in <a
href="https://github.com/microsoft/typespec/compare/7517c9175e07a472634027fdbba25e0cd8c94c66...4c63c992922f5acbbc0a4a90f4e054c5967d60ac">compare
view</a></li>
</ul>
</details>
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