Upgrade to maven-assembly-plugin 3.0.0

Release notes:

https://mail-archives.apache.org/mod_mbox/maven-announce/201611.mbox/%3CCAPoyBqSHgYXpoGWx%3Do_DsiO-pkCSdCX5Fnh6acrV0Ep3fNFFig%40mail.gmail.com%3E

pom.xml

@@ -135,7 +135,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.6</version>
+        <version>3.0.0</version>
         <configuration>
           <descriptors>
             <descriptor>src/main/assembly/jar-with-dependencies.xml</descriptor>