build(deps): bump serial_test from 3.1.0 to 3.1.1 (#290)

Bumps [serial_test](https://github.com/palfrey/serial_test) from 3.1.0 to 3.1.1.
- [Release notes](https://github.com/palfrey/serial_test/releases)
- [Commits](https://github.com/palfrey/serial_test/compare/v3.1.0...v3.1.1)

---
updated-dependencies:
- dependency-name: serial_test
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.toml

@@ -61,5 +61,5 @@ blake2 = "0.10.6"
 chacha20poly1305 = { version = "0.10.1", default-features = false, features = [ "std", "heapless" ] }
 zerocopy = { version = "0.7.32", features = ["derive"] }
 home = "0.5.9"
-serial_test = "3.1.0"
+serial_test = "3.1.1"
 derive_builder = "0.20.0"