build(deps): bump syn from 2.0.104 to 2.0.105 (#38660)

Bumps [syn](https://github.com/dtolnay/syn) from 2.0.104 to 2.0.105.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/syn/releases">syn's
releases</a>.</em></p>
<blockquote>
<h2>2.0.105</h2>
<ul>
<li>Disallow &quot;negative&quot; inherent impls like <code>impl !T
{}</code> (<a
href="https://redirect.github.com/dtolnay/syn/issues/1881">#1881</a>, <a
href="https://redirect.github.com/rust-lang/rust/pull/144386">rust-lang/rust#144386</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="9a8cc49b7b"><code>9a8cc49</code></a>
Release 2.0.105</li>
<li><a
href="0f8962b2e9"><code>0f8962b</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1881">#1881</a>
from dtolnay/negativeinherent</li>
<li><a
href="337aeac6d7"><code>337aeac</code></a>
Reject negative inherent impls</li>
<li><a
href="95c5e5a51f"><code>95c5e5a</code></a>
Update test suite to nightly-2025-08-13</li>
<li><a
href="20e155af00"><code>20e155a</code></a>
Revert &quot;Pin nightly toolchain used for miri job&quot;</li>
<li><a
href="bef1da9f56"><code>bef1da9</code></a>
Resolve implicit_clone pedantic clippy lint</li>
<li><a
href="aa9d9924a9"><code>aa9d992</code></a>
Update test suite to nightly-2025-07-24</li>
<li><a
href="3a2005c22d"><code>3a2005c</code></a>
Update test suite to nightly-2025-07-18</li>
<li><a
href="7ee23a7bed"><code>7ee23a7</code></a>
Update to toml 0.9</li>
<li><a
href="6b30c4b035"><code>6b30c4b</code></a>
Sort tests/common/eq.rs imports</li>
<li>Additional commits viewable in <a
href="https://github.com/dtolnay/syn/compare/2.0.104...2.0.105">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -8335,9 +8335,9 @@ checksum = "e454d048db5527d000bfddb77bd072bbf3a1e2ae785f16d9bd116e07c2ab45eb"
 
 [[package]]
 name = "syn"
-version = "2.0.104"
+version = "2.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
+checksum = "7bc3fcb250e53458e712715cf74285c1f889686520d79294a9ef3bd7aa1fc619"
 dependencies = [
  "proc-macro2",
  "quote",