Upgrade Micrometer to 1.0.6

Fixes #109

Author: acogoluegnes

pom.xml

@@ -56,8 +56,8 @@
 
     <rabbitmq.version>5.3.0</rabbitmq.version>
     <commons-cli.version>1.1</commons-cli.version>
-    <metrics.version>4.0.2</metrics.version>
-    <micrometer.version>1.0.5</micrometer.version>
+    <metrics.version>4.0.3</metrics.version>
+    <micrometer.version>1.0.6</micrometer.version>
     <logback.version>1.2.3</logback.version>
     <jetty.version>9.4.11.v20180605</jetty.version>
     <junit.jupiter.version>5.2.0</junit.jupiter.version>