Fix Maven scope mapping for the runtime dependencies in PM20 publishing

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/pm20/abstractVariantFactories.kt

@@ -166,7 +166,7 @@ abstract class AbstractKotlinGradleRuntimePublishedVariantFactory<T : KotlinGrad
             it.mapToMavenScope("compile")
         }
         platformComponent.addVariantsFromConfiguration(project.configurations.getByName(variant.runtimeElementsConfigurationName)) {
-            it.mapToMavenScope("compile")
+            it.mapToMavenScope("runtime")
         }
 
         module.ifMadePublic {