FELIX-4152 Update to latest Apache Parent POM 13

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1498269 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom/pom.xml b/pom/pom.xml
index 1327a89..66536fb 100644
--- a/pom/pom.xml
+++ b/pom/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache</groupId>
         <artifactId>apache</artifactId>
-        <version>9</version>
+        <version>13</version>
         <relativePath />
     </parent>