Update dependency com.rabbitmq:amqp-client to v5.20.0 (#3678)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

metrics-graphite/pom.xml

@@ -17,7 +17,7 @@
 
     <properties>
         <javaModuleName>com.codahale.metrics.graphite</javaModuleName>
-        <rabbitmq.version>5.19.0</rabbitmq.version>
+        <rabbitmq.version>5.20.0</rabbitmq.version>
     </properties>
 
     <dependencyManagement>