Merge pull request #1137 from rabbitmq/dependabot/maven/main/io.dropwizard.metrics-metrics-core-4.2.21

Bump io.dropwizard.metrics:metrics-core from 4.2.20 to 4.2.21

Author: acogoluegnes

pom.xml

@@ -56,7 +56,7 @@
 
     <spotless.check.skip>true</spotless.check.skip>
     <slf4j.version>1.7.36</slf4j.version>
-    <metrics.version>4.2.20</metrics.version>
+    <metrics.version>4.2.21</metrics.version>
     <micrometer.version>1.11.5</micrometer.version>
     <micrometer-tracing.version>1.1.4</micrometer-tracing.version>
     <opentelemetry.version>1.31.0</opentelemetry.version>