Update download-maven-plugin to 1.6.8
<plugin>
<groupId>com.googlecode.maven-download-plugin</groupId>
<artifactId>download-maven-plugin</artifactId>
- <version>1.3.0</version><!-- 1.4.0 fails due to old cache on Jenkins nodes https://github.com/maven-download-plugin/maven-download-plugin/issues/80 -->
+ <version>1.6.8</version>
<executions>
<execution>
<id>download-public-suffix-list</id>
