Update Gradle plugins

Author: bwaldvogel

build.gradle

@@ -9,9 +9,9 @@ plugins {
     id 'maven-publish'
     id 'signing'
     id 'jacoco'
-    id 'com.github.kt3k.coveralls' version '2.10.2'
+    id 'com.github.kt3k.coveralls' version '2.12.0'
     id 'de.undercouch.download' version '4.1.1'
-    id 'me.champeau.gradle.jmh' version '0.5.2'
+    id 'me.champeau.gradle.jmh' version '0.5.3'
 }
 
 group = "de.bwaldvogel"