build(deps): Bump syn from 2.0.87 to 2.0.89 (#612)

Bumps [syn](https://github.com/dtolnay/syn) from 2.0.87 to 2.0.89.
<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>2.0.89</h2>
<ul>
<li>Fix <em>&quot;compiler/fallback mismatch 949&quot;</em> panic (<a
href="https://redirect.github.com/dtolnay/proc-macro2/issues/483">dtolnay/proc-macro2#483</a>)</li>
</ul>
<h2>2.0.88</h2>
<ul>
<li>Improve error recovery in <code>parse_str</code> (<a
href="https://redirect.github.com/dtolnay/syn/issues/1783">#1783</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/syn/commit/06af36b972a9d50e961ebbe1bc6e8b56b1905cf4"><code>06af36b</code></a>
Release 2.0.89</li>
<li><a
href="https://github.com/dtolnay/syn/commit/42b47472503523b56979e6e15a905b02be31cf0d"><code>42b4747</code></a>
Fix &quot;compiler/fallback mismatch 949&quot; panic</li>
<li><a
href="https://github.com/dtolnay/syn/commit/424e484905c4fa83e2f5a396c6996f7d066c5572"><code>424e484</code></a>
Release 2.0.88</li>
<li><a
href="https://github.com/dtolnay/syn/commit/2375d9ac019e86f65eb07bed45c3ffd8ead92690"><code>2375d9a</code></a>
Pull in proc-macro2 FromStr's more robust error recovery</li>
<li><a
href="https://github.com/dtolnay/syn/commit/f46a6f32246696a1585c2c9e68c78b44079d68a5"><code>f46a6f3</code></a>
Update test suite to nightly-2024-11-18</li>
<li><a
href="https://github.com/dtolnay/syn/commit/fc133ebb037aa74c9a6ca10f9d394a7a9ee509fd"><code>fc133eb</code></a>
Resolve unnecessary_map_or clippy lint</li>
<li><a
href="https://github.com/dtolnay/syn/commit/0ccac34ff92fac4ddb488e8f1c7f9527e12b231b"><code>0ccac34</code></a>
Resolve question_mark clippy lint</li>
<li><a
href="https://github.com/dtolnay/syn/commit/5c1c057bfbcc55d05938a5b866428d86e6fe9f0a"><code>5c1c057</code></a>
Disable toml &quot;display&quot; feature</li>
<li><a
href="https://github.com/dtolnay/syn/commit/5bbe46a8c873e52ba289071ac30cd058c29a6e77"><code>5bbe46a</code></a>
Prevent upload-artifact step from causing CI failure</li>
<li><a
href="https://github.com/dtolnay/syn/commit/2b45e9331e5eece0f1cea01a9378f4296c1f1d60"><code>2b45e93</code></a>
Raise minimum version for syn-codegen crate to Rust 1.65</li>
<li>See full diff in <a
href="https://github.com/dtolnay/syn/compare/2.0.87...2.0.89">compare
view</a></li>
</ul>
</details>
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