[Gradle, K/N] Use default deviceId as a convention

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/native/KotlinNativeTargetConfigurator.kt

@@ -572,7 +572,7 @@ class KotlinNativeTargetWithSimulatorTestsConfigurator :
                 Xcode.getDefaultTestDeviceId(target.konanTarget)
                     ?: error("Xcode does not support simulator tests for ${target.konanTarget.name}. Check that requested SDK is installed.")
             }
-            testTask.device.set(deviceIdProvider)
+            testTask.device.convention(deviceIdProvider).finalizeValueOnRead()
         }
     }