Merge PR #68776 into tentacle

* refs/pull/68776/head:
	tentacle: test/neorados: Narrow Asio includes in `leak_watch_notify`
	test/neorados: Don't leak watch handle
	neorados: Avoid double cleanup in watch/notify
	neorados: Actually enforce notification queue limit
	neorados: Do not try to decode an empty response in notify
	neorados: Go through linger_cancel on `io_context` shutdown
	common/async: Fix removal from service list
	osdc: remove implicit LingerOp reference between watch/unwatch
	osdc: linger_register() returns intrusive_ptr<LingerOp>
	neorados: NotifierHandler holds intrusive_ptr<LingerOp>
	neorados: Notifier holds intrusive_ptr<LingerOp>
	librados: aio_unwatch() delivers ENOTCONN to AioCompletion
	osdc: Objecter::linger_by_cookie() for safe cast from uint64
	librados: linger callbacks hold a reference to LingerOp

Reviewed-by: Ilya Dryomov <idryomov@redhat.com>