fix lint

Author: LiamHamsters

src/Ydb.Sdk/test/Ydb.Sdk.Ado.Tests/PoolManagerTests.cs

@@ -4,7 +4,7 @@
 namespace Ydb.Sdk.Ado.Tests;
 
 [CollectionDefinition("PoolManagerTests", DisableParallelization = true)]
-public sealed class PoolManagerCollection { }
+public sealed class PoolManagerCollection;
 
 [Collection("PoolManagerTests")]
 public class PoolManagerTests