[Adminsysters] mailman upgrade

[mara]

hi

after the debian upgrade, the system's python got upgraded too.
we need to re-install the python requirements for mailman's virtualenv.

as this is urgent i added dates for this week.
so here's a poll for tomorrow and thursday:
https://cloud.systerserver.net/index.php/apps/polls/s/PaK2Xn1P

if you cannot see the poll, you may need to sign-in to our cloud.


-- 
mara.multiplace.org