✨ Features

- Implement `{Lower, Upper}Hex` for `Digest` (65dc94d3)

⚙️ Miscellaneous

- *(Makefile)* Use `nextest` for better timing results (638b0ae3)
- Canonicalize `use` statements (920c5db5)

♻️ Refactor

- (!) Remove generic from `MerkleTree` (aa340ff6)

✅ Testing

- *(mmra_with_mps)* Replace slow sanity checks with a test (eac5e7ac)
- Reduce test runtimes for slow tests (cbdaede2)