fix(deps): update dependency org.mockito.kotlin:mockito-kotlin to v6

Author: renovate[bot]

gradle/libs.versions.toml

@@ -19,7 +19,7 @@ ktorfitGradlePlugin = "2.7.2"
 
 ktorVersion = "3.4.1"
 mockk = "1.14.9"
-mockito-kotlin = "4.1.0"
+mockito-kotlin = "6.3.0"
 vannikMavenPublish = "0.36.0"
 licensee = "1.14.1"
 ktlint = "14.2.0"