- dispose tables when base is disposed

GBase/GBase.cs

@@ -119,6 +119,11 @@ namespace GBase
         /// <returns>A <see cref="ValueTask"/> to await</returns>
         public async ValueTask DisposeAsync()
         {
+            foreach (var table in Tables)
+            {
+                await table.DisposeAsync();
+            }
+
             Tables.Clear();
         }
     }