minor test method name change

Author: rpanackal

orchestration/src/test/java/com/sap/ai/sdk/orchestration/OrchestrationUnitTest.java

@@ -752,7 +752,7 @@ void testRequestWithMultiChatMessage() throws IOException {
 
   @SneakyThrows
   @Test
-  void testOrchestrationChatResponseWithImage() {
+  void testOrchestrationChatResponseWithMultiChatMessage() {
     var module = new SimpleModule();
     module.setMixInAnnotation(LLMModuleResult.class, JacksonMixins.NoneTypeInfoMixin.class);
     module.addDeserializer(