Avoid passing models to celery tasks

[quantum5]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1878 (47e27b7) into master (764d8ef) will increase coverage by 0.00%.
The diff coverage is 50.00%.

@@           Coverage Diff           @@
##           master    #1878   +/-   ##
=======================================
  Coverage   46.24%   46.24%           
=======================================
  Files         231      231           
  Lines       13052    13054    +2     
=======================================
+ Hits         6036     6037    +1     
- Misses       7016     7017    +1     

Impacted Files	Coverage Δ
judge/views/problem_manage.py	44.31% <0.00%> (ø)
judge/tasks/submission.py	21.05% <66.66%> (+1.05%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 764d8ef...47e27b7. Read the comment docs.

[Riolku]

Are we waiting on more reviews?

[kiritofeng]

Are we waiting on more reviews?

Nah we just don't wanna break prod more lol