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

@@ -101,7 +101,7 @@ bcprov-jdk18on = { group = "org.bouncycastle", name = "bcprov-jdk18on", version
 
 jsonassert = { group = "org.skyscreamer", name = "jsonassert", version = "1.5.3"}
 
-mockito-kotlin = { group = "org.mockito.kotlin", name = "mockito-kotlin", version = "5.3.1"}
+mockito-kotlin = { group = "org.mockito.kotlin", name = "mockito-kotlin", version = "5.4.0"}
 
 embedded-postgres = { group = "io.zonky.test", name = "embedded-postgres", version = "2.0.7"}
 embedded-postgres-binaries-bom = { group = "io.zonky.test.postgres", name = "embedded-postgres-binaries-bom", version = "15.5.1"}