SLING-7046 - Run the Sling ITs with Java 9

Upgrade launchpad/testing{,-war} to the latest parent pom with Java 9
support.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1807290 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 7b90ca8..d89224a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.sling</groupId>
         <artifactId>sling</artifactId>
-        <version>31</version>
+        <version>32</version>
         <relativePath />
     </parent>