chore(deps): update rust crate blake3 to v1.6.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
blake3	workspace.dependencies	patch	1.6.0 -> 1.6.1

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Release Notes

BLAKE3-team/BLAKE3 (blake3)

v1.6.1

Compare Source

version 1.6.1

Changes since 1.6.0:

• Remove mmap from the default features list. It was added
  accidentally in v1.6.0, last week. This is technically a
  backwards-incompatible change, but I would rather not tag v2.0.0 for a
  build-time bugfix with a simple workaround.

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GNU testsuite comparison:

Congrats! The gnu test tests/misc/tee is no longer failing!