fail2ban: fix 2to3 error
Issue: 2to3 support has been removed in setuptools since version 58.0.0.
Fix: openwrt/packages#17311
Requirements: 2to3/host openwrt/packages#17429
Add upstream patch: https://github.com/fail2ban/fail2ban/commit/
196c55e93103d1e56d1336f27a5f2591b4e54fef
To install/build for python3 from source, it is necessary to convert to py3
codebase before setup (invoke 2to3 or ./fail2ban-2to3 firstly).
> ./fail2ban-2to3
> python3 setup.py build
Signed-off-by: Kerma Gérald <gandalf@gk2.net>