Update dependency org.mockito.kotlin:mockito-kotlin to v6

Author: renovate[bot]

gradle/libs.versions.toml

@@ -42,7 +42,7 @@ androidxTestJunit = "1.3.0"
 androidTestRunner = "1.3.0-beta01"
 espresso = "3.7.0"
 mockito = "5.18.0"
-mockito-kotlin = "5.4.0"
+mockito-kotlin = "6.0.0"
 spotless = "6.25.0"
 
 [plugins]