Bump de.gesellix:testutil

Bumps [de.gesellix:testutil](https://github.com/docker-client/testutil) from 2023-12-19T09-55-00 to 2024-01-16T20-15-00.
- [Release notes](https://github.com/docker-client/testutil/releases)
- [Changelog](https://github.com/docker-client/testutil/blob/main/RELEASE.md)
- [Commits](https://github.com/docker-client/testutil/commits)

---
updated-dependencies:
- dependency-name: de.gesellix:testutil
  dependency-type: direct:production
...

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

engine/build.gradle.kts

@@ -80,7 +80,7 @@ dependencies {
   testImplementation("org.apache.commons:commons-lang3:3.14.0")
 
   implementation("de.gesellix:docker-filesocket:2024-01-12T22-30-00")
-  testImplementation("de.gesellix:testutil:2023-12-19T09-55-00")
+  testImplementation("de.gesellix:testutil:2024-01-16T20-15-00")
 
   implementation("org.bouncycastle:bcpkix-jdk18on:1.77")