use last plexus-archiver 2.2 as maven-archiver depends on this version now

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1388641 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index b6e5e20..e3f2cdc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -103,7 +103,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-archiver</artifactId>
-      <version>2.1.2</version>
+      <version>2.2</version>
       <exclusions>
         <exclusion>
           <groupId>org.codehaus.plexus</groupId>
@@ -118,7 +118,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
-      <version>3.0.5</version>
+      <version>3.0.7</version>
     </dependency>
 
     <dependency>