[K/N] Move kotlin.native.internal.GC into kotlin.native.runtime

As a part of efforts to stabilize Native stdlib #KT-55765.

kotlin-native/performance/swiftinterop/src/main/kotlin/org/jetbrains/GC.kt

@@ -2,10 +2,11 @@
  * Copyright 2010-2022 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
+@file:OptIn(kotlin.native.runtime.NativeRuntimeApi::class)
 
 package org.jetbrains.gc
 
-import kotlin.native.internal.GC
+import kotlin.native.runtime.GC
 
 fun collect() = GC.collect()
 fun schedule() = GC.schedule()