chore(deps): update rust crate blake3 to v1.8.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
blake3	workspace.dependencies	patch	1.8.2 → 1.8.3

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Release Notes

BLAKE3-team/BLAKE3 (blake3)

v1.8.3

Compare Source

version 1.8.3

Changes since 1.8.2:

• Add Hash::as_slice.
• Update to the 2024 Edition and bump the MSRV to 1.85.
• Fix a set of Miri failures in the intrinsics implementations. We were
  computing (though not dereferencing) an out-of-bounds pointer using
  add rather than wrapping_add. I'm not aware of any observable
  consequences of this bug. See #​507.
• CPU feature detection on x86/x86-64 no longer requires the std Cargo
  feature in the blake3 crate.
• Build fixes in the C implementation for macOS and Cygwin, and various
  improvements to the CMake build.

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[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tty/tty-eof (passes in this run but fails in the 'main' branch)