Update bitfield requirement from 0.17.0 to 0.18.1 (#4789)

Updates the requirements on [bitfield](https://github.com/dzamlo/rust-bitfield) to permit the latest version.
- [Changelog](https://github.com/dzamlo/rust-bitfield/blob/master/CHANGELOG.md)
- [Commits](dzamlo/rust-bitfield@v0.17.0...v0.18.1)

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

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

Cargo.toml

@@ -57,7 +57,7 @@ cmake = "0.1"
 bindgen = { version = "0.71", optional = true }
 
 [dependencies]
-bitfield = "0.17.0"
+bitfield = "0.18.1"
 libc = "0.2.0"
 c-types = "4.0.0"
 serde = { version = "1.0.117", features = ["derive"] }