[maven-release-plugin] prepare release rsync4j-pom-3.3.0-6

Author: fracpete

rsync4j-all/pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.github.fracpete</groupId>
     <artifactId>rsync4j-pom</artifactId>
-    <version>3.3.0-6-SNAPSHOT</version>
+    <version>3.3.0-6</version>
   </parent>
 
   <artifactId>rsync4j-all</artifactId>