fix linter

Author: KirillKurdyukov

src/Ydb.Sdk/src/Ado/Session/ImplicitSessionSource.cs

@@ -43,7 +43,7 @@ private bool TryAcquireLease()
     internal void ReleaseLease()
     {
         Interlocked.Decrement(ref _activeLeaseCount);
-        
+
         if (Volatile.Read(ref _isDisposed) == 1 && _activeLeaseCount == 0)
             _drainedTcs.TrySetResult();
     }

src/Ydb.Sdk/src/Ado/Session/PoolingSessionSource.cs

@@ -306,8 +306,8 @@ public async ValueTask DisposeAsync()
                                    "This may indicate a connection leak or suspended operations.");
         }
     }
-    
-    private Exception ObjectDisposedException => 
+
+    private Exception ObjectDisposedException =>
         new ObjectDisposedException(nameof(PoolingSessionSource<T>), "The session source has been closed.");
 }