update Sling parent and slingstart-maven-plugin (fixes aggregator build)
diff --git a/pom.xml b/pom.xml
index 46264a5..5650e1d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.sling</groupId>
         <artifactId>sling</artifactId>
-        <version>24</version>
+        <version>32</version>
         <relativePath/>
     </parent>
 
@@ -110,7 +110,7 @@
             <plugin>
                 <groupId>org.apache.sling</groupId>
                 <artifactId>slingstart-maven-plugin</artifactId>
-                <version>1.3.6</version>
+                <version>1.7.10</version>
                 <extensions>true</extensions>
                 <configuration>
                     <usePomDependencies>true</usePomDependencies>