check the docker permission before runing

[Squirre17]

python docker don't have permission to initialize Docker class even through user don't need docker actually.

Traceback (most recent call last):
  File "/home/squ/Prac/linux-kernel-compile-wksp/autokd/main.py", line 5, in <module>
    from autokd.kdocker   import kdocker 
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/squ/Prac/linux-kernel-compile-wksp/autokd/autokd/kdocker.py", line 64, in <module>
    kdocker = Docker()
              ^^^^^^^^
  File "/home/squ/Prac/linux-kernel-compile-wksp/autokd/autokd/kdocker.py", line 23, in __init__
    self.client   : DockerClient = docker.from_env()
                                   ^^^^^^^^^^^^^^^^^
  File "/home/squ/.pyenv/versions/3.11.8/lib/python3.11/site-packages/docker/client.py", line 94, in from_env
    return cls(
           ^^^^
  File "/home/squ/.pyenv/versions/3.11.8/lib/python3.11/site-packages/docker/client.py", line 45, in __init__
    self.api = APIClient(*args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/squ/.pyenv/versions/3.11.8/lib/python3.11/site-packages/docker/api/client.py", line 207, in __init__
    self._version = self._retrieve_server_version()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/squ/.pyenv/versions/3.11.8/lib/python3.11/site-packages/docker/api/client.py", line 230, in _retrieve_server_version
    raise DockerException(
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', PermissionError(13, 'Permission denied'))