Auto merge of #26382 - servo:dependabot/cargo/cbindgen-0.14.2, r=jdm

Bump cbindgen from 0.14.1 to 0.14.2

Bumps [cbindgen](https://github.com/eqrion/cbindgen) from 0.14.1 to 0.14.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/eqrion/cbindgen/blob/master/CHANGES">cbindgen's changelog</a>.</em></p>
<blockquote>
<h2>0.14.2</h2>
<pre><code> * Fixed minimal dependency versions. ([#507](https://github.com/eqrion/cbindgen/issues/507))
 * Add an option to write pragma once. ([#511](https://github.com/eqrion/cbindgen/issues/511))
 * Fix submodule scanning for implicit Rust 2018 modules. ([#512](https://github.com/eqrion/cbindgen/issues/512))
 * Fix dependency parsing / scanning to handle target-specific versions. ([#513](https://github.com/eqrion/cbindgen/issues/513))
 * Use heck for case conversion. ([#514](https://github.com/eqrion/cbindgen/issues/514))
 * Add support for verbatim content after includes. ([#416](https://github.com/eqrion/cbindgen/issues/416))
 * Allow to add attributes to most generated functions. ([#515](https://github.com/eqrion/cbindgen/issues/515))
</code></pre>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="b6b88f8c30"><code>b6b88f8</code></a> Release v0.14.2</li>
<li><a href="a05a223704"><code>a05a223</code></a> tests: Add tests for attribute annotations.</li>
<li><a href="5ee5b3ee88"><code>5ee5b3e</code></a> ir: Allow per-method annotations for all the auto-generated struct and enum m...</li>
<li><a href="be8e6ec876"><code>be8e6ec</code></a> enum: Allow to store annotations for empty variants.</li>
<li><a href="1a824c04f2"><code>1a824c0</code></a> Add support for verbatim content after includes</li>
<li><a href="d0d6716556"><code>d0d6716</code></a> ir: Minor cleanup to the cfg code.</li>
<li><a href="8139fbf3c7"><code>8139fbf</code></a> Fix <a href="https://github-redirect.dependabot.com/eqrion/cbindgen/issues/418">#418</a>: Use heck for case conversion</li>
<li><a href="4beb526516"><code>4beb526</code></a> Fix <a href="https://github-redirect.dependabot.com/eqrion/cbindgen/issues/254">#254</a> (<a href="https://github-redirect.dependabot.com/eqrion/cbindgen/issues/512">#512</a>)</li>
<li><a href="ca1c0b27b6"><code>ca1c0b2</code></a> Run cargo-fmt</li>
<li><a href="1df5129d1a"><code>1df5129</code></a> Fix 2015 edition module path resolution</li>
<li>Additional commits viewable in <a href="https://github.com/eqrion/cbindgen/compare/v0.14.1...v0.14.2">compare view</a></li>
</ul>
</details>
<br />

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Cargo.lock

@@ -549,11 +549,12 @@ dependencies = [
 
 [[package]]
 name = "cbindgen"
-version = "0.14.1"
+version = "0.14.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b15be43e426e5133330fffd63026e178e70ecc74df7a4a844a8ff6e6ffc2fcde"
+checksum = "104ca409bbff8293739438c71820a2606111b5f8f81835536dc673dfd807369e"
 dependencies = [
  "clap",
+ "heck",
  "log",
  "proc-macro2 1.0.1",
  "quote 1.0.2",
@@ -2423,6 +2424,15 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "heck"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "hex"
 version = "0.3.2"