Fix max tokens

Author: a-d

sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/services/OrchestrationService.java

@@ -57,7 +57,7 @@ public class OrchestrationService {
   public String queryPayments(final @Nonnull String msgUser) {
     final var msgSystem = "You are a helpful chat bot to answer questions on company payments.";
 
-    final var config = new OrchestrationModuleConfig().withLlmConfig(GPT_4O.withParam(TEMPERATURE, 0.5));
+    final var config = new OrchestrationModuleConfig().withLlmConfig(GPT_4O.withParam(TEMPERATURE, 0.5).withParam(MAX_TOKENS, 150));
     final var prompt = new OrchestrationPrompt(Message.system(msgSystem), Message.user(msgUser));
     final var result = client.chatCompletion(prompt, config);
     return result.getContent();