mgr/cephadm: Also catch concurrent.futures.TimeoutError for timeouts

mgr/cephadm: Also catch concurrent.futures.TimeoutError for timeouts

On python 3.6 which Ceph currently uses for its
container builds (which are based on centos 8 stream builds
hence the python version) the exception raised by a timeout
from a concurrent.futures.Future is successfully caught by
looking for asyncio.TimeoutError. However, in builds with
later python versions, e.g. 3.9.16, the timeout is no
longer caught. This results in situations like

Traceback (most recent call last):
  File "/usr/share/ceph/mgr/cephadm/utils.py", line 79, in do_work
    return f(*arg)
  File "/usr/share/ceph/mgr/cephadm/serve.py", line 241, in refresh
    r = self._refresh_host_devices(host)
  File "/usr/share/ceph/mgr/cephadm/serve.py", line 352, in _refresh_host_devices
    devices = self.mgr.wait_async(self._run_cephadm_json(
  File "/usr/share/ceph/mgr/cephadm/module.py", line 635, in wait_async
    return self.event_loop.get_result(coro, timeout)
  File "/usr/share/ceph/mgr/cephadm/ssh.py", line 63, in get_result
    return future.result(timeout)
  File "/lib64/python3.9/concurrent/futures/_base.py", line 448, in result
    raise TimeoutError()
concurrent.futures._base.TimeoutError

which causes the cephadm module to crash whenever one of these
command timeouts happen. This patch is to also catch the
newer exception type so it works on later python versions as well

Signed-off-by: Adam King <adking@redhat.com>