@ mention of reviewers

...

A brief description of the purpose of the changes contained in this PR.

Codabench is too slow to load. We need to speed up the public competitions page load speed.

1327

Use automation code from wiki (linked in issue 1327) to create lots of competitions
Publish all challenges

docker compose exec django bash
python manage.py shell_plus
comps = Competition.objects.all()

for i in comps:
    i.published = True
    i.save()