update libs

Packages/com.unity.asset-store-tools/Editor/Previews/Scripts/Services/PreviewServiceProvider.cs

@@ -0,0 +1,17 @@
+using AssetStoreTools.Utility;
+
+namespace AssetStoreTools.Previews.Services
+{
+    internal class PreviewServiceProvider : ServiceProvider<IPreviewService>
+    {
+        public static PreviewServiceProvider Instance => _instance ?? (_instance = new PreviewServiceProvider());
+        private static PreviewServiceProvider _instance;
+
+        private PreviewServiceProvider() { }
+
+        protected override void RegisterServices()
+        {
+            Register<ICachingService, CachingService>();
+        }
+    }
+}