[Build] Workaround the publication problem in :kotlin-gradle-subplugi…

…n-example

The problem is caused by `:kotlin-gradle-subplugin-example:embeddableJar` overwriting the output file of `:kotlin-gradle-subplugin-example:jar` causing Gradle  to think that :kotlin-gradle-subplugin-example:generateMetadataFileForPluginMavenPublication uses outputs of both tasks

libraries/examples/kotlin-gradle-subplugin-example/build.gradle

@@ -111,6 +111,12 @@ tasks.withType(PublishToMavenRepository)
             }
         }
 
+afterEvaluate {
+    tasks.named("generateMetadataFileForPluginMavenPublication") {
+        enabled = false
+    }
+}
+
 tasks.named("publishPlugins") {
     enabled = false
 }