Check if grunt-cli is installed does not work properly

[goessebr]

If you don't have grunt-cli installed on your system, the prepare command breaks with an unexpected output.

Steps to reproduce:

(atramhasis) goessebr@aruna:~/dev/atramhasis$ npm uninstall -g grunt-cli
removed 59 packages in 0.293s

┌────────────────────────────────────────────────────────────┐
│                  npm update check failed                   │
│            Try running with sudo or get access             │
│            to the local update config store via            │
│ sudo chown -R $USER:$(id -gn $USER) /home/goessebr/.config │
└────────────────────────────────────────────────────────────┘
(atramhasis) goessebr@aruna:~/dev/atramhasis$ npm list -g grunt-cli
/home/goessebr/.nvm/versions/node/v14.19.3/lib
└── (empty)

(atramhasis) goessebr@aruna:~/dev/atramhasis$ python setup.py prepare 
running prepare
--------------------------------------------------
==> check npm dependencies
Traceback (most recent call last):
  File "setup.py", line 72, in <module>
    setup(name='atramhasis',
  File "/home/goessebr/.virtualenvs/atramhasis/lib/python3.8/site-packages/setuptools/__init__.py", line 153, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.8/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib/python3.8/distutils/dist.py", line 966, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "setup.py", line 41, in run
    dojo_build()
  File "setup.py", line 18, in dojo_build
    libs = str(subprocess.check_output(["npm", "list", "-g", "grunt-cli"]))
  File "/usr/lib/python3.8/subprocess.py", line 415, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.8/subprocess.py", line 516, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['npm', 'list', '-g', 'grunt-cli']' returned non-zero exit status 1.

To fix it, install grunt-cli again
(atramhasis) goessebr@aruna:~/dev/atramhasis$ npm install -g grunt-cli