Use a class name that is only available on Spring Boot 3 (#1179)

spring-cloud-commons/src/main/java/org/springframework/cloud/configuration/SpringBootVersionVerifier.java

@@ -83,7 +83,7 @@ class SpringBootVersionVerifier implements CompatibilityVerifier {
 				try {
 					// since 3.0
 					Class.forName(
-							"org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener");
+							"org.springframework.boot.autoconfigure.validation.ValidationConfigurationCustomizer");
 					return true;
 
 				}