chore(deps): Update cbindgen requirement from 0.24 to 0.25 (#434)

Updates the requirements on
[cbindgen](https://github.com/eqrion/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>
<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 (`...`)
([#805](mozilla/cbindgen#805))
* Add --depfile option
([#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/eqrion/cbindgen/issues/841">#841</a>)</h2>
<pre><code>  * Update MSRV to 1.57
* Support variadic arguments (`...`)
([#805](mozilla/cbindgen#805))
* Add --depfile option
([#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
([#799](mozilla/cbindgen#799))
* Add with_cpp_compat to the builder
([#796](mozilla/cbindgen#796))
* Handle never type in return position consistently
([#780](mozilla/cbindgen#780))
* Fix warnings ([#816](mozilla/cbindgen#816),
[#819](mozilla/cbindgen#819))
* Updated documentation
([#788](mozilla/cbindgen#788),
[#791](mozilla/cbindgen#791),
[#792](mozilla/cbindgen#792),
[#810](mozilla/cbindgen#810),
[#823](mozilla/cbindgen#823))
</code></pre>
<h2>0.24.3</h2>
<pre><code> * Make struct expressions correctly generated through
typedefs ([#768](mozilla/cbindgen#768)).
</code></pre>
<h2>0.24.2</h2>
<pre><code>  * Make bitfield operators use explicit constructors.
</code></pre>
<h2>0.24.1</h2>
<pre><code> * Add support for unary negation
([#765](mozilla/cbindgen#765)).
* Make more bitfield operators constexpr
([#765](mozilla/cbindgen#765)).
</code></pre>
<h2>0.24.0</h2>
<pre><code> * Basic const generic support
([#759](mozilla/cbindgen#759),
[#760](mozilla/cbindgen#760)
[#762](mozilla/cbindgen#762)).
* Suffixes on integer literals are now honored to avoid narrowing
([#764](mozilla/cbindgen#764)).
</code></pre>
<h2>0.23.0</h2>
<pre><code> * Better support for constexpr.
([#756](mozilla/cbindgen#756))
* constexpr is now enabled by default in C++ mode. You can use
const.allow_constexpr=false to revert to previous behavior.
([#756](mozilla/cbindgen#756))
* Minimum syn version no longer parses old rust code.
([#754](mozilla/cbindgen#754))
</code></pre>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/mozilla/cbindgen/commit/dd9a550152cd162a3aa01757a55dd22fc56d0d8a"><code>dd9a550</code></a>
Fix minimal Rust version in CI</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/0529d215e7a1b2ad94ca166c1b26ad96f10e4a1c"><code>0529d21</code></a>
Revert &quot;Upgrade clap 3 to clap 4&quot;</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/289a31ba45c28a6d8d5eb681f7e1c83a23cdb673"><code>289a31b</code></a>
Fix clippy warning</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/67fea1a1a2e77464f96f184b298aed848ac38d53"><code>67fea1a</code></a>
Fix CI</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/80526e72f9109d45da10625e790791fc3a5cc18a"><code>80526e7</code></a>
Update changelog for v0.25.0</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/1e2ffd4414e1124f526a19ccb3b627c0e3694f53"><code>1e2ffd4</code></a>
CI: Replace forbidden actions with cli code</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/f61946b9798982c4c27da9fd5917824db2093095"><code>f61946b</code></a>
CI: Add semver checks to CI deploy job</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/b61aa2c330b3d4fe3bbe4fa71d9bc7104b7c94f7"><code>b61aa2c</code></a>
msrv 1.64</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/b734008c71f31a125797e799f420e1ad32f6b2f9"><code>b734008</code></a>
Upgrade clap 3 to clap 4</li>
<li><a
href="https://github.com/mozilla/cbindgen/commit/667de09279c3d5f0524216fefa949e64cbd3bc1a"><code>667de09</code></a>
Add: Add rust-toolchain.toml</li>
<li>Additional commits viewable in <a
href="https://github.com/eqrion/cbindgen/compare/v0.24.0...v0.25.0">compare
view</a></li>
</ul>
</details>
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runtime/Cargo.toml

@@ -34,4 +34,4 @@ register-filesystem = [] # enables wasm to be loaded from disk
 http = ["ureq"]          # enables extism_http_request
 
 [build-dependencies]
-cbindgen = "0.24"
+cbindgen = "0.25"