Bump rayon from 1.5.0 to 1.6.1 in /packer

[dependabot]

Bumps rayon from 1.5.0 to 1.6.1.

Changelog

Sourced from rayon's changelog.

Release rayon 1.6.1 (2022-12-09)

• Simplified par_bridge to only pull one item at a time from the iterator, without batching. Threads that are waiting for iterator items will now block appropriately rather than spinning CPU. (Thanks @​njaard!)
• Added protection against recursion in par_bridge, so iterators that also invoke rayon will not cause mutex recursion deadlocks.

Release rayon-core 1.10.1 (2022-11-18)

• Fixed a race condition with threads going to sleep while a broadcast starts.

Release rayon 1.6.0 / rayon-core 1.10.0 (2022-11-18)

• The minimum supported rustc is now 1.56.
• The new IndexedParallelIterator::fold_chunks and fold_chunks_with methods work like ParallelIterator::fold and fold_with with fixed-size chunks of items. This may be useful for predictable batching performance, without the allocation overhead of IndexedParallelIterator::chunks.
• New "broadcast" methods run a given function on all threads in the pool. These run at a sort of reduced priority after each thread has exhausted their local work queue, but before they attempt work-stealing from other threads.
  • The global broadcast function and ThreadPool::broadcast method will block until completion, returning a Vec of all return values.
  • The global spawn_broadcast function and methods on ThreadPool, Scope, and ScopeFifo will run detached, without blocking the current thread.
• Panicking methods now use #[track_caller] to report the caller's location.
• Fixed a truncated length in vec::Drain when given an empty range.

Contributors

Thanks to all of the contributors for this release!

• @​cuviper
• @​idanmuze
• @​JoeyBF
• @​JustForFun88
• @​kianmeng
• @​kornelski
• @​ritchie46
• @​ryanrussell
• @​steffahn
• @​TheIronBorn
• @​willcrozi

Release rayon 1.5.3 (2022-05-13)

• The new ParallelSliceMut::par_sort_by_cached_key is a stable sort that caches the keys for each item -- a parallel version of slice::sort_by_cached_key.

... (truncated)

Commits

• 401678e Merge #709
• 33e9843 Release rayon 1.2.1 / rayon-core 1.6.1
• dd874ac Bump crate versions and dependencies
• 0c6338d Reduce Option complexity in demo cpu_time
• be99e50 cargo fmt
• 9b4d979 Avoid mem::uninitialized in the demo cpu_time
• 5a46643 Avoid mem::uninitialized in par_sort_unstable
• 73b1061 Merge #705
• 54c0b0d Make sure that compat-Cargo.lock is fresh
• 4fd13b0 Regenerate compat-Cargo.lock
• Additional commits viewable in compare view

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