Lock acquire fails for etcd3gw driver

All drivers with @_retry.retry(stop_max_delay=blocking) wrapper on lock acquire fails with below traceback

  File "/home/ubuntu/st2/virtualenv/lib/python3.8/site-packages/tooz/locking.py", line 50, in __enter__
    acquired = self.acquire(*args, **kwargs)
  File "/home/ubuntu/st2/virtualenv/lib/python3.8/site-packages/tooz/drivers/etcd3gw.py", line 42, in wrapper
    return func(*args, **kwargs)
  File "/home/ubuntu/st2/virtualenv/lib/python3.8/site-packages/tooz/drivers/etcd3gw.py", line 122, in acquire
    return _acquire()
  File "/home/ubuntu/st2/virtualenv/lib/python3.8/site-packages/tenacity/__init__.py", line 325, in wrapped_f
    return self(f, *args, **kw)
  File "/home/ubuntu/st2/virtualenv/lib/python3.8/site-packages/tenacity/__init__.py", line 405, in __call__
    do = self.iter(retry_state=retry_state)
  File "/home/ubuntu/st2/virtualenv/lib/python3.8/site-packages/tenacity/__init__.py", line 349, in iter
    if not (is_explicit_retry or self.retry(retry_state=retry_state)):
TypeError: <lambda>() got an unexpected keyword argument 'retry_state'