blake2b on dependency

[henri-ly]

Context (issues, jira)

https://ledger.slack.com/archives/C02LACPH3U3/p1646834398860669

Description / Usage

missing dependency shouldn't be major because blake it's already on .lock but it's still better to have it on main dependency

Expectations

• Test coverage: The changes of this PR are covered by test. Unit test were added with mocks when depending on a backend/device.
• No impact: The changes of this PR have ZERO impact on the userland. Meaning, we can use these changes without modifying LLD/LLM at all. It will be a "noop" and the maintainers will be able to bump it without changing anything.

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[gre]

ci shows a problem, are you sure there are no diff when running yarn ?