Description:

The git-review package needs the following dependency added:
- extra/python-setuptools

It is otherwise missing the necessary following necessary python modules:
- pkg_resources (from extra/python-setuptools),
- six (from extra/python-six)

Additional info:

* package version(s)
extra/git-review 1.28.0-4

* config and/or log files etc.

```
$ git review -l
Traceback (most recent call last):
File "/usr/bin/git-review", line 6, in <module>
from git_review.cmd import main
File "/usr/lib/python3.9/site-packages/git_review/cmd.py", line 28, in <module>
import six
ModuleNotFoundError: No module named 'six'
```

```
$ git review -l
Traceback (most recent call last):
File "/usr/bin/git-review", line 6, in <module>
from git_review.cmd import main
File "/usr/lib/python3.9/site-packages/git_review/cmd.py", line 33, in <module>
import pkg_resources
ModuleNotFoundError: No module named 'pkg_resources'
```

* link to upstream bug report, if any

Steps to reproduce: