deps: bump tokio from 1.49.0 to 1.50.0

[dependabot]

Bumps tokio from 1.49.0 to 1.50.0.

Release notes

Sourced from tokio's releases.

Tokio v1.50.0

1.50.0 (Mar 3rd, 2026)

Added

• net: add TcpStream::set_zero_linger (#7837)
• rt: add is_rt_shutdown_err (#7771)

Changed

• io: add optimizer hint that memchr returns in-bounds pointer (#7792)
• io: implement vectored writes for write_buf (#7871)
• runtime: panic when event_interval is set to 0 (#7838)
• runtime: shorten default thread name to fit in Linux limit (#7880)
• signal: remember the result of SetConsoleCtrlHandler (#7833)
• signal: specialize windows Registry (#7885)

Fixed

• io: always cleanup AsyncFd registration list on deregister (#7773)
• macros: remove (most) local use declarations in tokio::select! (#7929)
• net: fix GET_BUF_SIZE constant for target_os = "android" (#7889)
• runtime: avoid redundant unpark in current_thread scheduler (#7834)
• runtime: don't park in current_thread if before_park defers waker (#7835)
• io: fix write readiness on ESP32 on short writes (#7872)
• runtime: wake deferred tasks before entering block_in_place (#7879)
• sync: drop rx waker when oneshot receiver is dropped (#7886)
• runtime: fix double increment of num_idle_threads on shutdown (#7910, #7918, #7922)

Unstable

• fs: check for io-uring opcode support (#7815)
• runtime: avoid lock acquisition after uring init (#7850)

Documented

• docs: update outdated unstable features section (#7839)
• io: clarify the behavior of AsyncWriteExt::shutdown() (#7908)
• io: explain how to flush stdout/stderr (#7904)
• io: fix incorrect and confusing AsyncWrite documentation (#7875)
• rt: clarify the documentation of Runtime::spawn (#7803)
• rt: fix missing quotation in docs (#7925)
• runtime: correct the default thread name in docs (#7896)
• runtime: fix event_interval doc (#7932)
• sync: clarify RwLock fairness documentation (#7919)
• sync: clarify that recv returns None once closed and no more messages (#7920)
• task: clarify when to use spawn_blocking vs dedicated threads (#7923)
• task: doc that task drops before JoinHandle completion (#7825)
• signal: guarantee that listeners never return None (#7869)
• task: fix task module feature flags in docs (#7891)

... (truncated)

Commits

• 0273e45 chore: prepare Tokio v1.50.0 (#7934)
• e3ee4e5 chore: prepare tokio-macros v2.6.1 (#7943)
• 8c980ea io: add write_all_vectored to tokio-util (#7768)
• e35fd6d ci: fix patch during clippy step (#7935)
• 03fe44c runtime: fix event_interval doc (#7932)
• d18e5df io: fix race in Mock::poll_write (#7882)
• f21f269 runtime: fix race condition during the blocking pool shutdown (#7922)
• d81e8f0 macros: remove (most) local use declarations in tokio::select! (#7929)
• 25e7f26 rt: fix missing quotation in docs (#7925)
• e1a91ef util: fix typo in docs (#7926)
• Additional commits viewable in compare view

[dependabot]

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