Update crossbeam-channel requirement from 0.4 to 0.5

[dependabot-preview[bot]]

Updates the requirements on crossbeam-channel to permit the latest version.

Changelog

Sourced from crossbeam-channel's changelog.

Version 0.5.0

• Update crossbeam-channel to 0.3.
• Update crossbeam-utils to 0.6.
• Add AtomicCell, SharedLock, and WaitGroup.

Version 0.4.1

• Fix a double-free bug in MsQueue and SegQueue.

Version 0.4

• Switch to the new implementation of epoch-based reclamation in crossbeam-epoch, fixing numerous bugs in the old implementation. Its API is changed in a backward-incompatible way.
• Switch to the new implementation of CachePadded and scoped thread in crossbeam-utils. The scoped thread API is changed in a backward-incompatible way.
• Switch to the new implementation of Chase-Lev deque in crossbeam-deque. Its API is changed in a backward-incompatible way.
• Export channel implemented in crossbeam-channel.
• Remove AtomicOption.
• Implement Default and From traits.

Version 0.3

• Introduced ScopedThreadBuilder with the ability to name threads and set stack size
• Worker methods in the Chase-Lev deque don't require mutable access anymore
• Fixed a bug when unblocking pop() in MsQueue
• Implemented Drop for MsQueue, SegQueue, and TreiberStack
• Implemented Default for TreiberStack
• Added is_empty to SegQueue
• Renamed mem::epoch to epoch
• Other bug fixes

Version 0.2

• Changed existing non-blocking pop methods to try_pop
• Added blocking pop support to Michael-Scott queue
• Added Chase-Lev work-stealing deque

Version 0.1

• Added epoch-based memory management
• Added Michael-Scott queue
• Added Segmented array queue

Commits

• d9dfc9e Merge #581
• 2a3d84b Prepare for the next release
• 5ea6e70 Merge #580
• b363b3d Fix UB in destroy_array test
• e08b21c Merge #577
• 6217abf Ignore clippy::match_like_matches_macro lint
• 9cbfae7 Update cfg-if to 1
• 2444749 Merge #574
• 619f7db Fixed a few typos
• 7cc8377 Better plot.py with Python 3 & remove hard code (#569)
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Looks like crossbeam-channel is up-to-date now, so this is no longer needed.