Bump itertools from 0.12.0 to 0.12.1

[dependabot[bot]]

Bumps itertools from 0.12.0 to 0.12.1.

Changelog

Sourced from itertools's changelog.

0.12.1

Added

• Documented iteration order guarantee for Itertools::[tuple_]combinations (#822)
• Documented possible panic in iterate (#842)
• Implemented Clone and Debug for Diff (#845)
• Implemented Debug for WithPosition (#859)
• Implemented Eq for MinMaxResult (#838)
• Implemented From<EitherOrBoth<A, B>> for Option<Either<A, B>> (#843)
• Implemented PeekingNext for RepeatN (#855)

Changed

• Made CoalesceBy lazy (#801)
• Optimized Filter[Map]Ok::next, Itertools::partition, Unique[By]::next[_back] (#818)
• Optimized Itertools::find_position (#837)
• Optimized Positions::next[_back] (#816)
• Optimized ZipLongest::fold (#854)
• Relaxed Debug bounds for GroupingMapBy (#860)
• Specialized ExactlyOneError::fold (#826)
• Specialized Interleave[Shortest]::fold (#849)
• Specialized MultiPeek::fold (#820)
• Specialized PadUsing::[r]fold (#825)
• Specialized PeekNth::fold (#824)
• Specialized Positions::[r]fold (#813)
• Specialized PutBackN::fold (#823)
• Specialized RepeatN::[r]fold (#821)
• Specialized TakeWhileInclusive::fold (#851)
• Specialized ZipLongest::rfold (#848)

Notable Internal Changes

• Added test coverage in CI (#847, #856)
• Added semver check in CI (#784)
• Enforced clippy in CI (#740)
• Enforced rustdoc in CI (#840)
• Improved specialization tests (#807)
• More specialization benchmarks (#806)

Commits

• 98d3978 Prepare v0.12.1 release
• dffac1f Bump obi1kenobi/cargo-semver-checks-action from 2.2 to 2.3
• 00998a4 CoalesceBy: missing field in Debug
• a0411d6 CombinationsWithReplacement: use a boxed slice internally
• 8dd75f1 Permutations: use boxed slices internally
• b785403 ExactlyOneError: implement Debug differently
• 7a1c22b FlattenOk: Debug with macro
• 94452e3 GroupingMapBy: fix Debug implementation
• 2e325a0 TakeWhileInclusive: missing field in Debug
• a48c5b4 WithPosition: implement Debug
• Additional commits viewable in compare view

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