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Dependencies: Bump rayon from 1.7.0 to 1.8.0

dependabot requested to merge dependabot-cargo-rayon-1.8.0 into master

Bumps rayon from 1.7.0 to 1.8.0.


Sourced from rayon's changelog.

Release rayon 1.8.0 / rayon-core 1.12.0 (2023-09-20)

  • The minimum supported rustc is now 1.63.
  • Added ThreadPoolBuilder::use_current_thread to use the builder thread as part of the new thread pool. That thread does not run the pool's main loop, but it may participate in work-stealing if it yields to rayon in some way.
  • Implemented FromParallelIterator<T> for Box<[T]>, Rc<[T]>, and Arc<[T]>, as well as FromParallelIterator<Box<str>> and ParallelExtend<Box<str>> for String.
  • ThreadPoolBuilder::build_scoped now uses std::thread::scope.
  • The default number of threads is now determined using std::thread::available_parallelism instead of the num_cpus crate.
  • The internal logging facility has been removed, reducing bloat for all users.
  • Many smaller performance tweaks and documentation updates.

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