chore(deps): update dependency org.mockito:mockito-core to v5.3.0

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 kotest = "5.5.5"
 kotlin = "1.8.20"
-mockito = "5.2.0"
+mockito = "5.3.0"
 
 [libraries]
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "kotlin" }