Adjusted test after merge

Author: Claudio-code

models/spring-ai-anthropic/src/test/java/org/springframework/ai/anthropic/AnthropicChatModelIT.java

@@ -34,6 +34,7 @@
 import org.junit.jupiter.params.provider.ValueSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.ai.model.function.FunctionCallback;
 import org.springframework.boot.test.system.OutputCaptureExtension;
 import org.springframework.boot.test.system.OutputCaptureRule;
 import reactor.core.publisher.Flux;