fix race condition!

Author: KirillKurdyukov

src/Ydb.Sdk/src/IDriver.cs

@@ -217,7 +217,7 @@ protected async ValueTask<CallOptions> GetCallOptions(GrpcRequestSettings settin
 
     public async ValueTask DisposeAsync()
     {
-        if (--_ownerCount <= 0 && Interlocked.CompareExchange(ref Disposed, 1, 0) == 0)
+        if (Interlocked.Decrement(ref _ownerCount) <= 0 && Interlocked.CompareExchange(ref Disposed, 1, 0) == 0)
         {
             await ChannelPool.DisposeAsync();
 

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

@@ -3,10 +3,8 @@
 
 namespace Ydb.Sdk.Ado.Tests;
 
-[CollectionDefinition("PoolManagerTests", DisableParallelization = true)]
-public sealed class PoolManagerCollection;
-
 [Collection("PoolManagerTests")]
+[CollectionDefinition("PoolManagerTests", DisableParallelization = true)]
 public class PoolManagerTests
 {
     [Theory]

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

@@ -3,10 +3,8 @@
 
 namespace Ydb.Sdk.Ado.Tests;
 
-[CollectionDefinition("YdbSchemaTests isolation test", DisableParallelization = true)]
-public sealed class YdbSchemaManagerCollection;
-
 [Collection("YdbSchemaTests isolation test")]
+[CollectionDefinition("YdbSchemaTests isolation test", DisableParallelization = true)]
 public class YdbSchemaTests : TestBase
 {
     private readonly string _table1;