Redirecting output from snapcraft within VSCode terminal errors with permissions issue

Using: snapcraft, version 4.4.3

Running the following:

```
snapcraft version > version.txt
```

Expected result:

- version.txt file created containing `snapcraft, version 4.4.3`
- Status code of 0 returned for command

Actual result:

- version.txt file is created, but is empty
- status code of 120 returned
- the following error is displayed:

```
>: snapcraft version > test.txt
Error in sys.excepthook:
Traceback (most recent call last):
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/snapcraft/cli/_errors.py", line 270, in exception_handler
    _process_outer_exception(exc_info, debug)
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/snapcraft/cli/_errors.py", line 207, in _process_outer_exception
    click.echo(_MSG_TRACEBACK_PRINT)
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/utils.py", line 273, in echo
    file.flush()
PermissionError: [Errno 13] Permission denied

Original exception was:
Traceback (most recent call last):
  File "/snap/snapcraft/5793/bin/snapcraft", line 33, in <module>
    sys.exit(load_entry_point('snapcraft==4.4.3', 'console_scripts', 'snapcraft')())
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/snapcraft/cli/version.py", line 38, in version
    click.echo(SNAPCRAFT_VERSION_TEMPLATE % {"version": snapcraft.__version__})
  File "/snap/snapcraft/5793/lib/python3.6/site-packages/click/utils.py", line 273, in echo
    file.flush()
PermissionError: [Errno 13] Permission denied
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'>
PermissionError: [Errno 13] Permission denied
```

Tools that are using `snapcraft` to build snap packages are failing as a result if they are launched as a child process. Such as electron-snap-installer which is used by `electron-forge`.