Bump org.mockito.kotlin:mockito-kotlin from 5.3.1 to 5.4.0

Bumps [org.mockito.kotlin:mockito-kotlin](https://github.com/mockito/mockito-kotlin) from 5.3.1 to 5.4.0.
- [Release notes](https://github.com/mockito/mockito-kotlin/releases)
- [Commits](mockito/mockito-kotlin@5.3.1...5.4.0)

---
updated-dependencies:
- dependency-name: org.mockito.kotlin:mockito-kotlin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -21,7 +21,7 @@ bndlibVersion = "7.0.0"
 assertjVersion = "3.26.0"
 junitVersion = "5.10.3"
 mockitoVersion = "5.12.0"
-mockitoKotlinVersion = "5.3.1"
+mockitoKotlinVersion = "5.4.0"
 
 # Plugins
 avroGradleVersion = "1.3.0"