Click 8.1.8 no longer works

[pombredanne]

See https://dev.azure.com/nexB/scancode-toolkit/_build/results?buildId=15131&view=logs&j=51e48696-633a-5fd5-beca-0cdec502e01c&t=1127802e-76e7-5642-21b8-a4a09f29d7bf

=========================== short test summary info ============================
FAILED tests/scancode/test_cli.py::test_usage_and_help_return_a_correct_script_name_on_all_platforms - AssertionError: 
  Failure to run:
  rc: 2
  scancode --help --test-mode --verbose
  output:
  Usage: scancode [OPTIONS] <OUTPUT FORMAT OPTION(s)> <input>...
  Try the 'scancode --help' option for help on options and arguments.
  
  Error: Invalid value: At least one input path is required.
  
  
assert 2 == 0
 +  where 2 = <Result SystemExit(2)>.exit_code
FAILED tests/scancode/test_cli.py::test_scan_cli_help - AssertionError: 
  Failure to run:
  rc: 2
  scancode --help --test-mode --verbose
  output:
  Usage: scancode [OPTIONS] <OUTPUT FORMAT OPTION(s)> <input>...
  Try the 'scancode --help' option for help on options and arguments.
  
  Error: Invalid value: At least one input path is required.
  
  
assert 2 == 0
 +  where 2 = <Result SystemExit(2)>.exit_code