Update to newer plexus-archiver to cope with jdk1.8
diff --git a/eclipse-signing-maven-plugin/pom.xml b/eclipse-signing-maven-plugin/pom.xml
index 9c171e3..1f6a48a 100644
--- a/eclipse-signing-maven-plugin/pom.xml
+++ b/eclipse-signing-maven-plugin/pom.xml
@@ -42,12 +42,12 @@
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-archiver</artifactId>
- <version>2.0</version>
+ <version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-utils</artifactId>
- <version>3.0</version>
+ <version>3.0.9</version>
<scope>compile</scope>
</dependency>
<dependency>