cargo: bump tokio from 1.37.0 to 1.38.0 in the cargo-dependencies group

[dependabot]

Bumps the cargo-dependencies group with 1 update: tokio.

Updates tokio from 1.37.0 to 1.38.0

Release notes

Sourced from tokio's releases.

Tokio v1.38.0

This release marks the beginning of stabilization for runtime metrics. It stabilizes RuntimeMetrics::worker_count. Future releases will continue to stabilize more metrics.

Added

• fs: add File::create_new (#6573)
• io: add copy_bidirectional_with_sizes (#6500)
• io: implement AsyncBufRead for Join (#6449)
• net: add Apple visionOS support (#6465)
• net: implement Clone for NamedPipeInfo (#6586)
• net: support QNX OS (#6421)
• sync: add Notify::notify_last (#6520)
• sync: add mpsc::Receiver::{capacity,max_capacity} (#6511)
• sync: add split method to the semaphore permit (#6472, #6478)
• task: add tokio::task::join_set::Builder::spawn_blocking (#6578)
• wasm: support rt-multi-thread with wasm32-wasi-preview1-threads (#6510)

Changed

• macros: make #[tokio::test] append #[test] at the end of the attribute list (#6497)
• metrics: fix blocking_threads count (#6551)
• metrics: stabilize RuntimeMetrics::worker_count (#6556)
• runtime: move task out of the lifo_slot in block_in_place (#6596)
• runtime: panic if global_queue_interval is zero (#6445)
• sync: always drop message in destructor for oneshot receiver (#6558)
• sync: instrument Semaphore for task dumps (#6499)
• sync: use FIFO ordering when waking batches of wakers (#6521)
• task: make LocalKey::get work with Clone types (#6433)
• tests: update nix and mio-aio dev-dependencies (#6552)
• time: clean up implementation (#6517)
• time: lazily init timers on first poll (#6512)
• time: remove the true_when field in TimerShared (#6563)
• time: use sharding for timer implementation (#6534)

Fixed

• taskdump: allow building taskdump docs on non-unix machines (#6564)
• time: check for overflow in Interval::poll_tick (#6487)
• sync: fix incorrect is_empty on mpsc block boundaries (#6603)

Documented

• fs: rewrite file system docs (#6467)
• io: fix stdin documentation (#6581)
• io: fix obsolete reference in ReadHalf::unsplit() documentation (#6498)
• macros: render more comprehensible documentation for select! (#6468)
• net: add missing types to module docs (#6482)
• net: fix misleading NamedPipeServer example (#6590)

... (truncated)

Commits

• 14c17fc chore: prepare Tokio v1.38.0 (#6601)
• 65cbf73 chore: prepare tokio-macros v2.3.0 (#6600)
• dbf93c7 sync: fix incorrect is_empty on mpsc block boundaries (#6603)
• 873cb8a runtime: move task out of the lifo_slot in block_in_place (#6596)
• 97bb47b task: fix a typo in doc of LocalSet::run_until (#6599)
• 86658bd metrics: stabilize RuntimeMetrics::worker_count (#6556)
• 9e00b26 sync: add Notify::notify_last (#6520)
• 6c42d28 net: fix misleading NamedPipeServer example (#6590)
• 3a6fdc0 license: fix formatting and remove year in licenses (#6451)
• 2890d0c metrics: fix blocking_threads count (#6551)
• Additional commits viewable in compare view

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[dependabot]

Looks like tokio is updatable in another way, so this is no longer needed.