Fix StepScopeProxyTargetClassOverrideIntegrationTests

This test started failing after an upstream change in Spring Framework,
see spring-projects/spring-framework#28115

Author: fmbenhassine

spring-batch-core/src/test/java/org/springframework/batch/core/scope/StepScopeProxyTargetClassOverrideIntegrationTests.java

@@ -41,7 +41,7 @@ public class StepScopeProxyTargetClassOverrideIntegrationTests implements BeanFa
 
 	private static final String JDK_PROXY_TO_STRING_REGEX = "class .*\\$Proxy\\d+";
 
-	private static final String CGLIB_PROXY_TO_STRING_REGEX = "class .*\\$EnhancerBySpringCGLIB.*";
+	private static final String CGLIB_PROXY_TO_STRING_REGEX = "class .*\\$SpringCGLIB.*";
 
 	@Autowired
 	@Qualifier("simple")