Auto merge of #26701 - servo:dependabot/cargo/heartbeats-simple-sys-0.4.3, r=jdm

Bump heartbeats-simple-sys from 0.4.1 to 0.4.3

Bumps [heartbeats-simple-sys](https://github.com/libheartbeats/heartbeats-simple-sys) from 0.4.1 to 0.4.3.
<details>
<summary>Commits</summary>
<ul>
<li><a href="d6608e5414"><code>d6608e5</code></a> Up version to 0.4.3</li>
<li><a href="26359a33dd"><code>26359a3</code></a> Update upstream to v0.3.5 for MSYS Makefiles fix</li>
<li><a href="a42d1ecbf5"><code>a42d1ec</code></a> Up version to 0.4.2; fix license field syntax in Cargo.toml</li>
<li><a href="a3bdfcd60f"><code>a3bdfcd</code></a> Update native to upstream v0.3.4</li>
<li><a href="519ff7c3e0"><code>519ff7c</code></a> Don't use cmake from kubuntu-backports in Travis anymore (now uses Trusy imag...</li>
<li><a href="ee528f159f"><code>ee528f1</code></a> Add info about project source</li>
<li>See full diff in <a href="https://github.com/libheartbeats/heartbeats-simple-sys/compare/v0.4.1...v0.4.3">compare view</a></li>
</ul>
</details>
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Cargo.lock

@@ -2455,9 +2455,9 @@ dependencies = [
 
 [[package]]
 name = "heartbeats-simple-sys"
-version = "0.4.1"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1a408c0011427cc0e0049f7861c70377819aedfc006e8c901b1c70fd98fb1a4"
+checksum = "29f06e482fdc3f29015d288ad63bc5e855ffca0830866550a08b29e55924c935"
 dependencies = [
  "cmake",
  "libc",