Use Framework's ResolvableType

Replace accidental use of Lettuce's class of the same name.

Closes gh-45561

Author: wilkinsona

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/health/AbstractCompositeHealthContributorConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +20,9 @@
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import io.lettuce.core.dynamic.support.ResolvableType;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.core.ResolvableType;
 import org.springframework.util.ClassUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;