[Systemroles] NOTICE: Fedora 34 - install tox from pip

[Richard Megginson]

On Fedora 34, the tox rpm package has added `-s` to the shebang line.  This
means that python will not add ~/.local/lib to the sys.path.  This means
that tox cannot find tox-lsr installed in ~/.local/lib.

I recommend that you install `tox` using `pip install --force --user tox`
and make sure you use ~/.local/bin/tox - either use that command directly,
or ensure that ~/.local/bin is in your PATH before /usr/bin