LDAP-251: Disable publishing of non core modules

This is necessary so that the Gradle builds can be promoted. Otherwise an
error like the following is displayed when promoting the build:

HTTP Status 400 - Unable to find artifact
'spring-ldap-article-sample-1.3.2.RELEASE.war'

build.gradle

@@ -44,6 +44,8 @@ configure(subprojects - coreModules) {
     sonarRunner {
         skipProject = true
     }
+
+    tasks.findByPath("artifactoryPublish")?.enabled = false
 }
 
 description = "Spring LDAP"