* Update `digest` and `blake2` requirement from 0.7 to 0.8 Updates the requirements on [digest](https://github.com/RustCrypto/traits) to permit the latest version. - [Release notes](https://github.com/RustCrypto/traits/releases) - [Commits](https://github.com/RustCrypto/traits/compare/digest_v0.7.2...digest-v0.8.1) Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com> Co-authored-by: Pratyush Mishra <pratyushmishra@berkeley.edu>