Bump crossbeam-channel from 0.5.6 to 0.5.7 in /botnet

[dependabot[bot]]

Bumps crossbeam-channel from 0.5.6 to 0.5.7.

Release notes

Sourced from crossbeam-channel's releases.

crossbeam-channel 0.5.7

• Improve handling of very large timeout. (#953)

Commits

• 721382b Merge #964
• 3f4e797 Prepare for the next release
• a03ceeb Revert "Use dtolnay/rust-toolchain action"
• 56397a1 Handle min-atomic-width in no_atomic.sh
• 6871c00 Mark some structures with #[clippy::has_significant_drop]
• 78a4331 Deps: update to memoffset 0.8
• 7df683c Make scope() function soft-deprecated
• 923d050 Wait forever on very large timeout
• b13bdb0 Fix AtomicCell is_lock_free test on armv7
• 34dd9d5 limit batch steal size
• Additional commits viewable in compare view

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