Populate Guests/Sponsors

[allyharrison]

Story

As a sponsor
I want my logo + links populated
So that other event attendees are aware of my brand

Details

Currently, the only sponsor is Squadrone.

These sponsors are defined in server/api/sponsor/fixtures/sponsor.json

We need to populate the rest of the sponsors.

Steps to implement

1. Start the Django admin server
2. Go to http://localhost:8000/admin/sponsor/
3. For each sponsor, create an new entry https://www.aicodeaustralia.com.au/competition#:~:text=2025%20Event%20Official,2025%20Event%20Sponsors
4. Shut down the server and run python manage.py dumpdata sponsor.sponsor
5. Test that it all works as expected by running python manage.py loaddata sponsor.sponsor

[github-actions]

Branch issue-44-Populate_Guests/Sponsors created!