community/py3-gevent: fix dependency on setuptools
Introduced in https://github.com/gevent/gevent/commit/94d9788fc047a44bf2db7e179abb8796e3bed79e
Without pkg_resources
shipped with setuptools
gevent fails with this trace.
...
patch_all()
File "/usr/lib/python3.9/site-packages/gevent/monkey.py", line 1226, in patch_all
from gevent import events
File "/usr/lib/python3.9/site-packages/gevent/events.py", line 74, in <module>
from pkg_resources import iter_entry_points
ModuleNotFoundError: No module named 'pkg_resources'