Merge #870

870: Bump itertools from 0.10.1 to 0.10.3 r=rishflab a=dependabot[bot]

Bumps [itertools](https://github.com/rust-itertools/itertools) from 0.10.1 to 0.10.3.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/rust-itertools/itertools/blob/master/CHANGELOG.md">itertools's changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>0.10.2</h2>
<ul>
<li>Add <code>Itertools::multiunzip</code> (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/362">#362</a>, <a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/565">#565</a>)</li>
<li>Add <code>intersperse</code> and <code>intersperse_with</code> free functions (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/555">#555</a>)</li>
<li>Add <code>Itertools::sorted_by_cached_key</code> (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/424">#424</a>, <a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/575">#575</a>)</li>
<li>Specialize <code>ProcessResults::fold</code> (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/563">#563</a>)</li>
<li>Fix subtraction overflow in <code>DuplicatesBy::size_hint</code> (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/552">#552</a>)</li>
<li>Fix specialization tests (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/574">#574</a>)</li>
<li>More <code>Debug</code> impls (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/573">#573</a>)</li>
<li>Deprecate <code>fold1</code> (use <code>reduce</code> instead) (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/580">#580</a>)</li>
<li>Documentation fixes (<code>HomogenousTuple</code>, <code>into_group_map</code>, <code>into_group_map_by</code>, <code>MultiPeek::peek</code>) (<a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/543">#543</a> et al.)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="3003c2a968"><code>3003c2a</code></a> (cargo-release) version 0.10.3</li>
<li><a href="e9c9f2f56c"><code>e9c9f2f</code></a> Merge <a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/585">#585</a></li>
<li><a href="defab962d5"><code>defab96</code></a> Prepare 0.10.2 (3) README</li>
<li><a href="2234b7f12b"><code>2234b7f</code></a> Prepare 0.10.2 (2) Cargo.toml</li>
<li><a href="72f300dc95"><code>72f300d</code></a> Prepare 0.10.2 (1) changelog</li>
<li><a href="3307e4da2e"><code>3307e4d</code></a> Merge <a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/575">#575</a></li>
<li><a href="ed55a5f109"><code>ed55a5f</code></a> Merge <a href="https://github-redirect.dependabot.com/rust-itertools/itertools/issues/580">#580</a></li>
<li><a href="42033adcbb"><code>42033ad</code></a> Deprecate <code>fold1</code> in faviour of <code>reduce</code></li>
<li><a href="a1510e7405"><code>a1510e7</code></a> remove extra space</li>
<li><a href="d856ee74b1"><code>d856ee7</code></a> Add <code>sorted_by_cached_key</code> to <code>Itertools</code> trait</li>
<li>Additional commits viewable in <a href="https://github.com/rust-itertools/itertools/compare/v0.10.1...v0.10.3">compare view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -1619,9 +1619,9 @@ checksum = "47be2f14c678be2fdcab04ab1171db51b2762ce6f0a8ee87c8dd4a04ed216135"
 
 [[package]]
 name = "itertools"
-version = "0.10.1"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69ddb889f9d0d08a67338271fa9b62996bc788c7796a5c18cf057420aaed5eaf"
+checksum = "a9a9d19fa1e79b6215ff29b9d6880b706147f16e9b1dbb1e4e5947b5b02bc5e3"
 dependencies = [
  "either",
 ]