Fix CompositeMeterRegistryPostProcessor autowire

Update `CompositeMeterRegistryPostProcessor` to use constructor
autowiring for `Clock` detection.

Fixes gh-11856

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/CompositeMeterRegistryPostProcessor.java

@@ -18,7 +18,6 @@ package org.springframework.boot.actuate.autoconfigure.metrics.export;
 
 import java.util.Arrays;
 
-import io.micrometer.core.instrument.Clock;
 import io.micrometer.core.instrument.MeterRegistry;
 import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
 
@@ -29,8 +28,8 @@ import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.beans.factory.config.ConstructorArgumentValues;
-import org.springframework.beans.factory.config.ConstructorArgumentValues.ValueHolder;
 import org.springframework.beans.factory.config.RuntimeBeanReference;
+import org.springframework.beans.factory.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProcessor;
 import org.springframework.beans.factory.support.GenericBeanDefinition;
@@ -105,9 +104,8 @@ class CompositeMeterRegistryPostProcessor
 		GenericBeanDefinition definition = new GenericBeanDefinition();
 		definition.setBeanClass(CompositeMeterRegistry.class);
 		definition.setPrimary(true);
+		definition.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_CONSTRUCTOR);
 		ConstructorArgumentValues arguments = new ConstructorArgumentValues();
-		arguments.addIndexedArgumentValue(0,
-				new ValueHolder(null, Clock.class.getName()));
 		arguments.addIndexedArgumentValue(1, getBeanReferences(registryBeans));
 		definition.setConstructorArgumentValues(arguments);
 		registry.registerBeanDefinition(COMPOSITE_BEAN_NAME, definition);

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/CompositeMeterRegistryPostProcessorTests.java

@@ -73,6 +73,7 @@ public class CompositeMeterRegistryPostProcessorTests {
 					assertThat(primary).isInstanceOf(CompositeMeterRegistry.class);
 					assertThat(((CompositeMeterRegistry) primary).getRegistries())
 							.hasSize(2);
+					assertThat(primary.config().clock()).isNotNull();
 				});
 	}