Updates the requirements on
[cbindgen](https://github.com/mozilla/cbindgen) to permit the latest
version.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/mozilla/cbindgen/blob/master/CHANGES">cbindgen's
changelog</a>.</em></p>
<blockquote>
<h1>0.27.0</h1>
<pre><code>  * Revert: The `Config` struct now has a private member.
* Allow users to specify a crate version for bindings generation
([extism#901](mozilla/cbindgen#901)).
* Update MSRV to 1.74
([#912](mozilla/cbindgen#912),
[#987](mozilla/cbindgen#987)).
* Support #[deprecated] on enum variants
([#933](mozilla/cbindgen#933)).
* Support integrating the package_version information in a header file
comment ([#939](mozilla/cbindgen#939)).
* Add a language backend
([#942](mozilla/cbindgen#942)).
* Support generics with defaulted args
([#959](mozilla/cbindgen#959)).
* Add `VaList` compatibility
([#970](mozilla/cbindgen#970)).
</code></pre>
<h1>0.26.0</h1>
<pre><code>  * Fix swapping of `&gt;&gt;=` and `&lt;&lt;=` in constants.
* Add support for #[deprecated]
([extism#860](mozilla/cbindgen#860)).
  * Built-in support for bitflags 2.0.
  * Support for &quot;C-unwind&quot; ABI.
* Generate bindings for non-public extern items if they are
#[no_mangle].
</code></pre>
<h2>0.25.0</h2>
<pre><code>  * Re-release of yanked 0.24.6 as a major release
  * Update MSRV to 1.57
* Support variadic arguments (`...`)
([extism#805](mozilla/cbindgen#805))
* Add --depfile option
([extism#820](mozilla/cbindgen#820))
  * Breaking changes: The `Config` struct now has a private member.
</code></pre>
<h2>0.24.6 (YANKED: depfile option was breaking, see <a
href="https://redirect.github.com/mozilla/cbindgen/issues/841">#841</a>)</h2>
<pre><code>  * Update MSRV to 1.57
* Support variadic arguments (`...`)
([extism#805](mozilla/cbindgen#805))
* Add --depfile option
([extism#820](mozilla/cbindgen#820))
</code></pre>
<h2>0.24.5</h2>
<pre><code>  * Don't enforce tempfile version.
</code></pre>
<h2>0.24.4</h2>
<pre><code> * Move expand infinite recursion fix
([extism#799](mozilla/cbindgen#799))
* Add with_cpp_compat to the builder
([extism#796](mozilla/cbindgen#796))
* Handle never type in return position consistently
([extism#780](mozilla/cbindgen#780))
* Fix warnings ([extism#816](mozilla/cbindgen#816),
[extism#819](mozilla/cbindgen#819))
* Updated documentation
([extism#788](mozilla/cbindgen#788),
[extism#791](mozilla/cbindgen#791),
[extism#792](mozilla/cbindgen#792),
[extism#810](mozilla/cbindgen#810),
[extism#823](mozilla/cbindgen#823))
</code></pre>
<h2>0.24.3</h2>
<pre><code> * Make struct expressions correctly generated through
typedefs ([extism#768](mozilla/cbindgen#768)).
</code></pre>
<h2>0.24.2</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/mozilla/cbindgen/commit/58c6156b0d91e82abb03c26187b8d18fa4345ce0"><code>58c6156</code></a>
Bump MSRV again for clap.</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/103a8de0ac1ac311d54843acdfc10ee8c203a3ba"><code>103a8de</code></a>
Cargo update and version bump.</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/67cb560430cf91fecdd402cd1239d0a51baff634"><code>67cb560</code></a>
Update CHANGES since v0.26.0</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/316298182ebf508240c95ddf9943556b2fb546e1"><code>3162981</code></a>
Output condition for globals.</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/e469e44c0027f4ca039a4556f6062c0ba343a5b4"><code>e469e44</code></a>
Add missing parens to log message</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/3cbb637bbf16c7378ce4d6cb4b73e5d2d2bd33fa"><code>3cbb637</code></a>
Update cython expectations from the previous patch.</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/785e066e03b0e22a32c31e9adab78a18f6ce195b"><code>785e066</code></a>
Fix variadic arguments when used in function pointer</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/aa8ea654e156fd1b8e5b1b755c7b43fe4ea81331"><code>aa8ea65</code></a>
deps: Update syn to 2.0</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/9f632843b8b9dacbdc7a153868a4a9546e196e2e"><code>9f63284</code></a>
Generalize Item to expose documentation and generic params</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/1dda6162e53df57cb1769e9a6f942f6de839f50b"><code>1dda616</code></a>
Used documented method of specifying variadic arguments</li>
<li>Additional commits viewable in <a
href="https://github.com/mozilla/cbindgen/compare/0.26.0...v0.27.0">compare
view</a></li>
</ul>
</details>
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