fix: fixed a typo in Test name

src/test/java/uulm/teamname/marvelous/gamelibrary/json/ingame/serialize/MessageSerializationTest.java

@@ -35,7 +35,7 @@ public class MessageSerializationTest {
     }
 
     @Test
-    void CharacterSelectionDeserializationTest() throws JsonProcessingException {
+    void CharacterSelectionSerializationTest() throws JsonProcessingException {
         var jsonRepresentingMessage = """
                 {
                 "messageType":"CHARACTER_SELECTION",