Bump serial_test from 3.3.1 to 3.4.0

Bumps [serial_test](https://github.com/palfrey/serial_test) from 3.3.1 to 3.4.0.
- [Release notes](https://github.com/palfrey/serial_test/releases)
- [Commits](palfrey/serial_test@v3.3.1...v3.4.0)

---
updated-dependencies:
- dependency-name: serial_test
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -82,7 +82,7 @@ proptest = "1.4"
 rustapi-core = { workspace = true, features = ["test-utils"] }
 rustapi-testing = { workspace = true }
 tempfile = "3.26"
-serial_test = "3.2"
+serial_test = "3.4"
 
 [features]
 default = []