Bump serial_test from 0.3.2 to 0.4.0 (#8808)

Bumps [serial_test](https://github.com/palfrey/serial_test) from 0.3.2 to 0.4.0.
- [Release notes](https://github.com/palfrey/serial_test/releases)
- [Commits](https://github.com/palfrey/serial_test/compare/v0.3.2...v0.4.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

local-cluster/Cargo.toml

@@ -33,5 +33,5 @@ solana-rayon-threadlimit = { path = "../rayon-threadlimit", version = "1.1.0" }
 
 [dev-dependencies]
 assert_matches = "1.3.0"
-serial_test = "0.3.2"
+serial_test = "0.4.0"
 serial_test_derive = "0.4.0"