Auto merge of #26989 - servo:dependabot/cargo/rayon-core-1.7.1, r=jdm

build(deps): bump rayon-core from 1.7.0 to 1.7.1

Bumps [rayon-core](https://github.com/rayon-rs/rayon) from 1.7.0 to 1.7.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/rayon-rs/rayon/blob/master/RELEASES.md">rayon-core's changelog</a>.</em></p>
<blockquote>
<h1>Release rayon 1.3.1 / rayon-core 1.7.1 (2020-06-15)</h1>
<ul>
<li>Fixed a use-after-free race in calls blocked between two rayon thread pools.</li>
<li>Collecting to an indexed <code>Vec</code> now drops any partial writes while unwinding,
rather than just leaking them. If dropping also panics, Rust will abort.
<ul>
<li>Note: the old leaking behavior is considered <em>safe</em>, just not ideal.</li>
</ul>
</li>
<li>The new <code>IndexedParallelIterator::step_by()</code> adapts an iterator to step
through items by the given count, like <code>Iterator::step_by()</code>.</li>
<li>The new <code>ParallelSlice::par_chunks_exact()</code> and mutable equivalent
<code>ParallelSliceMut::par_chunks_exact_mut()</code> ensure that the chunks always have
the exact length requested, leaving any remainder separate, like the slice
methods <code>chunks_exact()</code> and <code>chunks_exact_mut()</code>.</li>
</ul>
<h2>Contributors</h2>
<p>Thanks to all of the contributors for this release!</p>
<ul>
<li><a href="https://github.com/adrian5">@adrian5</a></li>
<li><a href="https://github.com/bluss">@bluss</a></li>
<li><a href="https://github.com/cuviper">@cuviper</a></li>
<li><a href="https://github.com/FlyingCanoe">@FlyingCanoe</a></li>
<li><a href="https://github.com/GuillaumeGomez">@GuillaumeGomez</a></li>
<li><a href="https://github.com/matthiasbeyer">@matthiasbeyer</a></li>
<li><a href="https://github.com/picoHz">@picoHz</a></li>
<li><a href="https://github.com/zesterer">@zesterer</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="a798276590"><code>a798276</code></a> Merge <a href="https://github-redirect.dependabot.com/rayon-rs/rayon/issues/769">#769</a></li>
<li><a href="4bce3c8f27"><code>4bce3c8</code></a> Update ci/compat-Cargo.lock</li>
<li><a href="c5b6e1cd28"><code>c5b6e1c</code></a> Release rayon 1.3.1 and rayon-core 1.7.1</li>
<li><a href="983866d421"><code>983866d</code></a> Merge <a href="https://github-redirect.dependabot.com/rayon-rs/rayon/issues/740">#740</a></li>
<li><a href="eac386f1e3"><code>eac386f</code></a> Merge <a href="https://github-redirect.dependabot.com/rayon-rs/rayon/issues/766">#766</a></li>
<li><a href="8f58a12b51"><code>8f58a12</code></a> Fix wrong examples of find_map variants</li>
<li><a href="b5e81efdda"><code>b5e81ef</code></a> Merge <a href="https://github-redirect.dependabot.com/rayon-rs/rayon/issues/759">#759</a></li>
<li><a href="94baa8232c"><code>94baa82</code></a> Add collect unwinding test for zero-sized elements</li>
<li><a href="b5869e4553"><code>b5869e4</code></a> Remove redundant Send impl for CollectFolder</li>
<li><a href="7a0c42e649"><code>7a0c42e</code></a> Move collect test to its own file</li>
<li>Additional commits viewable in <a href="https://github.com/rayon-rs/rayon/compare/rayon-core-v1.7.0...rayon-core-v1.7.1">compare view</a></li>
</ul>
</details>
<br />

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Cargo.lock

@@ -4361,9 +4361,9 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08a89b46efaf957e52b18062fb2f4660f8b8a4dde1807ca002690868ef2c85a9"
+checksum = "e92e15d89083484e11353891f1af602cc661426deb9564c298b270c726973280"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-queue",