[Reference PR for ENG-4141] More Django3 related dependencies upgrade

[cslzchen]

Purpose

There are a few left-over dependencies that we decided not to upgrade (due to various limitations/blockers).

Use this PR and the ticket https://openscience.atlassian.net/browse/ENG-4141 as a reference for future upgrades for postgres, celery, elastic, python etc.

Changes

QA Notes

Documentation

Side Effects

Ticket