chore: bump trees from 0.2.1 to 0.4.2 (#18052)

* chore: bump trees from 0.2.1 to 0.4.2 (#18041)

Bumps [trees](https://github.com/oooutlk/trees) from 0.2.1 to 0.4.2.
- [Release notes](https://github.com/oooutlk/trees/releases)
- [Commits](https://github.com/oooutlk/trees/commits)

---
updated-dependencies:
- dependency-name: trees
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Accommodate field & type changes

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

ledger/Cargo.toml

@@ -52,7 +52,7 @@ tempfile = "3.2.0"
 thiserror = "1.0"
 tokio = { version = "1", features = ["full"] }
 tokio-stream = "0.1"
-trees = "0.2.1"
+trees = "0.4.2"
 
 # Disable reed-solomon-erasure/simd-accel feature on aarch64 only since it
 # requires clang to support -march=native.