Upgrade to Dropwizard Metrics 4.0.7

Closes gh-18781

Author: snicoll

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -56,7 +56,7 @@
 		<dependency-management-plugin.version>1.0.8.RELEASE</dependency-management-plugin.version>
 		<derby.version>10.14.2.0</derby.version>
 		<dom4j.version>1.6.1</dom4j.version>
-		<dropwizard-metrics.version>4.0.6</dropwizard-metrics.version>
+		<dropwizard-metrics.version>4.0.7</dropwizard-metrics.version>
 		<ehcache.version>2.10.6</ehcache.version>
 		<ehcache3.version>3.6.3</ehcache3.version>
 		<embedded-mongo.version>2.1.2</embedded-mongo.version>