dt ext genca broken on 1.6.11

[dlopes7]

Steps to reproduce

pip install -U dt-cli==1.6.11
dt ext genca

Generates:

Traceback (most recent call last):
  File "C:\Program Files\Python38\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Program Files\Python38\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\tmp\venv\Scripts\dt.exe\__main__.py", line 4, in <module>
ModuleNotFoundError: No module named 'dtcli.cli'

The same command works fine on 1.6.10

[vduseev]

Fixed in 1.6.12