Dix the packer cache script

Author: alpar-t

distribution/docker/build.gradle

@@ -142,4 +142,6 @@ assemble.dependsOn "buildDockerImage"
 // We build the images used in compose locally, but the pull command insists on using a repository
 // thus we must disable it to prevent it from doing so. 
 // Everything will still be pulled since we will build the local images on a pull
-tasks.matching { name == "composePull" }.all { enabled = false }
+if (tasks.findByName("composePull")) {
+    tasks.composePull.enabled = false 
+}