Create a new session on closing of another can create deadlock

[alex268]

"grpc-default-worker-ELG-1-1" #57 daemon prio=5 os_prio=0 cpu=25024.63ms elapsed=2828.70s tid=0x00007fc0e6a9d010 nid=0x533f waiting on condition  [0x00007fc0e69f8000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at jdk.internal.misc.Unsafe.park(java.base@17.0.3-vanilla/Native Method)
	- parking to wait for  <0x00000000c36ea3d0> (a java.util.concurrent.CompletableFuture$Signaller)
	at java.util.concurrent.locks.LockSupport.parkNanos(java.base@17.0.3-vanilla/LockSupport.java:252)
	at java.util.concurrent.CompletableFuture$Signaller.block(java.base@17.0.3-vanilla/CompletableFuture.java:1866)
	at java.util.concurrent.ForkJoinPool.unmanagedBlock(java.base@17.0.3-vanilla/ForkJoinPool.java:3463)
	at java.util.concurrent.ForkJoinPool.managedBlock(java.base@17.0.3-vanilla/ForkJoinPool.java:3434)
	at java.util.concurrent.CompletableFuture.timedGet(java.base@17.0.3-vanilla/CompletableFuture.java:1939)
	at java.util.concurrent.CompletableFuture.get(java.base@17.0.3-vanilla/CompletableFuture.java:2095)
	at tech.ydb.core.impl.pool.GrpcChannel$ReadyWatcher.getReadyChannel(GrpcChannel.java:80)
	at tech.ydb.core.impl.pool.GrpcChannel.getReadyChannel(GrpcChannel.java:46)
	at tech.ydb.core.impl.BaseGrpcTransport.unaryCall(BaseGrpcTransport.java:84)
	at tech.ydb.table.rpc.grpc.GrpcTableRpc.createSession(GrpcTableRpc.java:50)
	at tech.ydb.table.impl.BaseSession.createSessionId(BaseSession.java:174)
	at tech.ydb.table.impl.pool.SessionPool$Handler.create(SessionPool.java:183)
	at tech.ydb.table.impl.pool.WaitingQueue.tryToCreateNewPending(WaitingQueue.java:226)
	at tech.ydb.table.impl.pool.WaitingQueue.checkNextWaitingAcquire(WaitingQueue.java:276)
	at tech.ydb.table.impl.pool.WaitingQueue.lambda$checkNextWaitingAcquire$0(WaitingQueue.java:279)
	at tech.ydb.table.impl.pool.WaitingQueue$$Lambda$2581/0x00000008013e9000.accept(Unknown Source)
	at java.util.concurrent.CompletableFuture.uniWhenComplete(java.base@17.0.3-vanilla/CompletableFuture.java:863)
	at java.util.concurrent.CompletableFuture.uniWhenCompleteStage(java.base@17.0.3-vanilla/CompletableFuture.java:887)
	at java.util.concurrent.CompletableFuture.whenComplete(java.base@17.0.3-vanilla/CompletableFuture.java:2325)
	at tech.ydb.table.impl.pool.WaitingQueue.checkNextWaitingAcquire(WaitingQueue.java:277)
	at tech.ydb.table.impl.pool.WaitingQueue.lambda$checkNextWaitingAcquire$0(WaitingQueue.java:279)
	at tech.ydb.table.impl.pool.WaitingQueue$$Lambda$2581/0x00000008013e9000.accept(Unknown Source)