[Regression] Running pipenv uninstall --all fails when no venv exists

[monkeyman192]

Issue description

We have been running pipenv uninstall --all as part of our CI to ensure that the venv is clean before installing and this was working fine until this PR.
The venv didn't always exist, but the command never failed, so I assumed it was fine.

Expected result

I would expect pipenv uninstall --all to not fail even if there is no venv present (ie. there is nothing to uninstall so all good, as was the previous behaviour)

Actual result

pipenv uninstall --all
Un-installing all [packages]...
Uninstalling six...
Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 8, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/cli/options.py", line 58, in main
    return super().main(*args, **kwargs, windows_expand_args=False)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/decorators.py", line 92, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/vendor/click/decorators.py", line 33, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/cli/command.py", line 290, in uninstall
    retcode = do_uninstall(
  File "/usr/local/lib/python3.9/dist-packages/pipenv/routines/uninstall.py", line 91, in do_uninstall
    _uninstall_from_environment(project, package, system=system)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/routines/uninstall.py", line 23, in _uninstall_from_environment
    with project.environment.activated():
  File "/usr/local/lib/python3.9/dist-packages/pipenv/project.py", line 514, in environment
    self._environment = self.get_environment(allow_global=allow_global)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/project.py", line 500, in get_environment
    environment = Environment(
  File "/usr/local/lib/python3.9/dist-packages/pipenv/environment.py", line 79, in __init__
    self._base_paths = self.get_paths()
  File "/usr/local/lib/python3.9/dist-packages/pipenv/environment.py", line 334, in get_paths
    c = subprocess_run(command)
  File "/usr/local/lib/python3.9/dist-packages/pipenv/utils/processes.py", line 72, in subprocess_run
    return subprocess.run(
  File "/usr/lib/python3.9/subprocess.py", line 505, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.9/subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.9/subprocess.py", line 1837, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/root/.local/share/virtualenvs/build-fP27o2aX/bin/python'

Steps to replicate

Pipenv version 2024.0.1

Pipfile (contents don't matter, as long as there is something in the [packages]):

[packages]
six = "==1.16.0"

Pipfile.lock (empty, but it doesn't really matter...)

1. Do not create a venv. Just run this in an empty folder.
2. Run pipenv uninstall --all