Allows pre-release pytz versions until downstream django-celery fix lands.
Allows pre-release pytz versions until downstream django-celery fix lands.

agoravoting/agora-ciudadana,joanma100/agora-ciudadana,MareAtlantica/agora-ciudadana,joanma100/agora-ciudadana,pirata-cat/agora-ciudadana,agoravoting/agora-ciudadana,agoravoting/agora-ciudadana,MareAtlantica/agora-ciudadana,joanma100/agora-ciudadana,pirata-cat/agora-ciudadana,pirata-cat/agora-ciudadana,MareAtlantica/agora-ciudadana,MareAtlantica/agora-ciudadana,joanma100/agora-ciudadana