Change Lombok annotations to enable Jackson deserializing

src/test/java/mops/gruppen2/service/SerializationServiceTest.java

@@ -8,7 +8,7 @@ import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.mock;
 
 class SerializationServiceTest {