Changed the way DebugUpdater is intantiated to make it more reliable

ScriptableRenderPipeline/Core/CoreRP/Debugging/DebugManager.cs

         {
             RegisterInputs();
             RegisterActions();
-
-            var updater = UnityObject.FindObjectOfType<DebugUpdater>();
-
-            if (updater == null)
-            {
-                var go = new GameObject("[Debug Updater]") { hideFlags = HideFlags.HideInHierarchy };
-                go.AddComponent<DebugUpdater>();
-            }
         }
 
         public void Reset()

ScriptableRenderPipeline/Core/CoreRP/Debugging/DebugUpdater.cs

 {
     public class DebugUpdater : MonoBehaviour
     {
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.AfterSceneLoad)]
+        static void RuntimeInit()
+        {
+            if (FindObjectOfType<DebugUpdater>() != null)
+                return;
+
+            var go = new GameObject { name = "[Debug Updater]" };
+            go.AddComponent<DebugUpdater>();
+            DontDestroyOnLoad(go);
+        }
+
         void Update()
         {
             DebugManager.instance.UpdateActions();