Bump dependencies

References #625

(cherry picked from commit c737a93)

Author: acogoluegnes

pom.xml

@@ -54,9 +54,9 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
-    <slf4j.version>1.7.26</slf4j.version>
+    <slf4j.version>1.7.28</slf4j.version>
     <metrics.version>4.1.0</metrics.version>
-    <micrometer.version>1.2.0</micrometer.version>
+    <micrometer.version>1.2.1</micrometer.version>
     <jackson.version>2.9.9.3</jackson.version>
     <logback.version>1.2.3</logback.version>
     <junit.version>4.12</junit.version>