Update Rust crate tokio to v1.51.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	workspace.dependencies	minor	1.50.0 → 1.51.0

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Release Notes

tokio-rs/tokio (tokio)

v1.51.0: Tokio v1.51.0

Compare Source

1.51.0 (April 3rd, 2026)

Added

• net: implement get_peer_cred on Hurd (#​7989)
• runtime: add tokio::runtime::worker_index() (#​7921)
• runtime: add runtime name (#​7924)
• runtime: stabilize LocalRuntime (#​7557)
• wasm: add wasm32-wasip2 networking support (#​7933)

Changed

• runtime: steal tasks from the LIFO slot (#​7431)

Fixed

• docs: do not show "Available on non-loom only." doc label (#​7977)
• macros: improve overall macro hygiene (#​7997)
• sync: fix notify_waiters priority in Notify (#​7996)
• sync: fix panic in Chan::recv_many when called with non-empty vector on closed channel (#​7991)

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.44%. Comparing base (f91cfd5) to head (dd21ec5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #849   +/-   ##
=======================================
  Coverage   45.44%   45.44%           
=======================================
  Files          36       36           
  Lines        3615     3615           
=======================================
  Hits         1643     1643           
  Misses       1972     1972           

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