Fix unpacking maven dependencies with existing package.json

Author: Sergey Mashkov

kotlin-frontend/src/main/kotlin/org/jetbrains/kotlin/gradle/frontend/npm/UnpackGradleDependenciesTask.kt

@@ -85,7 +85,7 @@ open class UnpackGradleDependenciesTask : DefaultTask() {
 
                         val existingVersion = existingPackageJson["version"]?.toString() ?: toSemver(null)
 
-                        resultNames?.add(NameVersionsUri(name, artifact.moduleVersion.id.version, existingVersion, artifact.file.toLocalURI()))
+                        resultNames?.add(NameVersionsUri(name, artifact.moduleVersion.id.version, existingVersion, outDir.toLocalURI()))
                     } else {
                         val modules = getJsModuleNames(artifact.file)
                                 .takeIf { it.isNotEmpty() } ?: listOf(