Bump tokio from 1.16.1 to 1.17.0 in /webserver

[dependabot[bot]]

Bumps tokio from 1.16.1 to 1.17.0.

Release notes

Sourced from tokio's releases.

Tokio v1.17.0

1.17.0 (February 15, 2022)

This release updates the minimum supported Rust version (MSRV) to 1.49, the mio dependency to v0.8, and the (optional) parking_lot dependency to v0.12. Additionally, it contains several bug fixes, as well as internal refactoring and performance improvements.

Fixed

• time: prevent panicking in sleep with large durations (#4495)
• time: eliminate potential panics in Instant arithmetic on platforms where Instant::now is not monotonic (#4461)
• io: fix DuplexStream not participating in cooperative yielding (#4478)
• rt: fix potential double panic when dropping a JoinHandle (#4430)

Changed

• update minimum supported Rust version to 1.49 (#4457)
• update parking_lot dependency to v0.12.0 (#4459)
• update mio dependency to v0.8 (#4449)
• rt: remove an unnecessary lock in the blocking pool (#4436)
• rt: remove an unnecessary enum in the basic scheduler (#4462)
• time: use bit manipulation instead of modulo to improve performance (#4480)
• net: use std::future::Ready instead of our own Ready future (#4271)
• replace deprecated atomic::spin_loop_hint with hint::spin_loop (#4491)
• fix miri failures in intrusive linked lists (#4397)

Documented

• io: add an example for tokio::process::ChildStdin (#4479)

Unstable

The following changes only apply when building with --cfg tokio_unstable:

• task: fix missing location information in tracing spans generated by spawn_local (#4483)
• task: add JoinSet for managing sets of tasks (#4335)
• metrics: fix compilation error on MIPS (#4475)
• metrics: fix compilation error on arm32v7 (#4453)

#4495: tokio-rs/tokio#4495 #4461: tokio-rs/tokio#4461 #4478: tokio-rs/tokio#4478

... (truncated)

Commits

• 43c224f chore: prepare Tokio v1.17.0 release (#4504)
• 8758965 task: fix unstable API documentation notes (#4503)
• 28b983c time: use bit manipulation instead of modulo (#4480)
• 0826f76 time: prevent panicking in sleep() with large durations (#4495)
• 37917b8 rt: make JoinSet unstable (#4499)
• 9a3ce91 util: fix waker update condition in CancellationToken (#4497)
• 8fb15da Update to Mio v0.8
• ac0f894 net: use std::future::ready instead of own Ready future (#4271)
• 02141db replace spin_loop_hint with hint::spin_loop (#4491)
• 62274b0 chore: update minimal mio requirement to 0.7.11 (#4492)
• Additional commits viewable in compare view

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