build(deps): update libmdbx requirement from 0.3.3 to 0.4.2

Updates the requirements on [libmdbx](https://github.com/vorot93/libmdbx-rs) to permit the latest version.
- [Commits](https://github.com/vorot93/libmdbx-rs/commits/0.4.2)

---
updated-dependencies:
- dependency-name: libmdbx
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

src/storage/Cargo.toml

@@ -26,7 +26,7 @@ serde = { version = "1.0", features = ["derive"] }
 bson = "2.5.0"
 itertools = "0.10.5"
 ed = "0.3.0"
-libmdbx = "0.3.3"
+libmdbx = "0.4.2"
 rocksdb = { version = "0.18.0"}
 timer = "0.2.0"
 arweave-rs = {workspace=true}