Bump metrics

References #238

Author: acogoluegnes

pom.xml

@@ -56,7 +56,7 @@
 
     <rabbitmq.version>5.12.0</rabbitmq.version>
     <commons-cli.version>1.4</commons-cli.version>
-    <metrics.version>4.1.20</metrics.version>
+    <metrics.version>4.1.21</metrics.version>
     <micrometer.version>1.6.6</micrometer.version>
     <gson.version>2.8.6</gson.version>
     <logback.version>1.2.3</logback.version>