Update to latest parent pom

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1664289 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/http/base/pom.xml b/http/base/pom.xml
index 10d6b92..b5731b8 100644
--- a/http/base/pom.xml
+++ b/http/base/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.felix</groupId>
         <artifactId>org.apache.felix.http.parent</artifactId>
-        <version>5</version>
+        <version>6</version>
         <relativePath>../parent/pom.xml</relativePath>
     </parent>