Bump itertools from 0.12.0 to 0.12.1 (#3043)

Bumps [itertools](https://github.com/rust-itertools/itertools) from
0.12.0 to 0.12.1.
<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>
<h2>0.12.1</h2>
<h3>Added</h3>
<ul>
<li>Documented iteration order guarantee for
<code>Itertools::[tuple_]combinations</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/822">#822</a>)</li>
<li>Documented possible panic in <code>iterate</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/842">#842</a>)</li>
<li>Implemented <code>Clone</code> and <code>Debug</code> for
<code>Diff</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/845">#845</a>)</li>
<li>Implemented <code>Debug</code> for <code>WithPosition</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/859">#859</a>)</li>
<li>Implemented <code>Eq</code> for <code>MinMaxResult</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/838">#838</a>)</li>
<li>Implemented <code>From&lt;EitherOrBoth&lt;A, B&gt;&gt;</code> for
<code>Option&lt;Either&lt;A, B&gt;&gt;</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/843">#843</a>)</li>
<li>Implemented <code>PeekingNext</code> for <code>RepeatN</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/855">#855</a>)</li>
</ul>
<h3>Changed</h3>
<ul>
<li>Made <code>CoalesceBy</code> lazy (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/801">#801</a>)</li>
<li>Optimized <code>Filter[Map]Ok::next</code>,
<code>Itertools::partition</code>, <code>Unique[By]::next[_back]</code>
(<a
href="https://redirect.github.com/rust-itertools/itertools/issues/818">#818</a>)</li>
<li>Optimized <code>Itertools::find_position</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/837">#837</a>)</li>
<li>Optimized <code>Positions::next[_back]</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/816">#816</a>)</li>
<li>Optimized <code>ZipLongest::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/854">#854</a>)</li>
<li>Relaxed <code>Debug</code> bounds for <code>GroupingMapBy</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/860">#860</a>)</li>
<li>Specialized <code>ExactlyOneError::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/826">#826</a>)</li>
<li>Specialized <code>Interleave[Shortest]::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/849">#849</a>)</li>
<li>Specialized <code>MultiPeek::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/820">#820</a>)</li>
<li>Specialized <code>PadUsing::[r]fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/825">#825</a>)</li>
<li>Specialized <code>PeekNth::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/824">#824</a>)</li>
<li>Specialized <code>Positions::[r]fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/813">#813</a>)</li>
<li>Specialized <code>PutBackN::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/823">#823</a>)</li>
<li>Specialized <code>RepeatN::[r]fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/821">#821</a>)</li>
<li>Specialized <code>TakeWhileInclusive::fold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/851">#851</a>)</li>
<li>Specialized <code>ZipLongest::rfold</code> (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/848">#848</a>)</li>
</ul>
<h3>Notable Internal Changes</h3>
<ul>
<li>Added test coverage in CI (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/847">#847</a>,
<a
href="https://redirect.github.com/rust-itertools/itertools/issues/856">#856</a>)</li>
<li>Added semver check in CI (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/784">#784</a>)</li>
<li>Enforced <code>clippy</code> in CI (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/740">#740</a>)</li>
<li>Enforced <code>rustdoc</code> in CI (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/840">#840</a>)</li>
<li>Improved specialization tests (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/807">#807</a>)</li>
<li>More specialization benchmarks (<a
href="https://redirect.github.com/rust-itertools/itertools/issues/806">#806</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/rust-itertools/itertools/commit/98d3978c87d6aa8d35e3f459dc0089130e04b646"><code>98d3978</code></a>
Prepare v0.12.1 release</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/dffac1fde4f0c1454e3542d1530cce96e78063f3"><code>dffac1f</code></a>
Bump obi1kenobi/cargo-semver-checks-action from 2.2 to 2.3</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/00998a4bbc0fee91ceef380e7c46d8865fa22b95"><code>00998a4</code></a>
<code>CoalesceBy</code>: missing field in <code>Debug</code></li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/a0411d6c6f03057d13e7282cc64071a1b5976beb"><code>a0411d6</code></a>
<code>CombinationsWithReplacement</code>: use a boxed slice
internally</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/8dd75f155cd88813e438fc23c373dc6716c1f8d7"><code>8dd75f1</code></a>
<code>Permutations</code>: use boxed slices internally</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/b785403f5f96404e1580ddcf3ce22e02d178248b"><code>b785403</code></a>
<code>ExactlyOneError</code>: implement Debug differently</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/7a1c22be5efc6be366496d1cfce7ebac2386f02f"><code>7a1c22b</code></a>
<code>FlattenOk</code>: Debug with macro</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/94452e3eafb7c95fcbbb85c3dd78c274c6e43b62"><code>94452e3</code></a>
<code>GroupingMapBy</code>: fix Debug implementation</li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/2e325a0bd466330c127907b1e0b6f5a7ebff40bf"><code>2e325a0</code></a>
<code>TakeWhileInclusive</code>: missing field in
<code>Debug</code></li>
<li><a
href="https://github.com/rust-itertools/itertools/commit/a48c5b474bd005d184f23146a125ad1c94c54ab6"><code>a48c5b4</code></a>
<code>WithPosition</code>: implement Debug</li>
<li>Additional commits viewable in <a
href="https://github.com/rust-itertools/itertools/compare/v0.12.0...v0.12.1">compare
view</a></li>
</ul>
</details>
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src/core/Cargo.toml

@@ -38,7 +38,7 @@ fixedbitset = "0.4.0"
 getrandom = { version = "0.2", features = ["js"] }
 getset = "0.1.1"
 histogram = "0.9.1"
-itertools = "0.12.0"
+itertools = "0.12.1"
 log = "0.4.20"
 md5 = "0.7.0"
 memmap2 = "0.9.4"