Update backend dependencies
Fixes #2 (closed). Updates backend dependencies:
- django - 3.2.11
- django-environ - 0.8.1
- django-cors-headers - 3.11.0
- djangorestframework - 3.12.4
- djangorestframework-jwt - 1.11.0
- elasticsearch - 7x
- elasticsearch-dsl - 7x
- scikit-image - 0.19.1
- tables - 3.5.2
- tqdm - 4.32.1
- whitenoise - 5.3.0
Django newly released version 4.0.1. For the moment I do not update to version 4, djangorestframework-jwt's latest version is not yet compatible. It is archived by repo owner, so we should use an alternative API. I'll update this later, when I have more in depth knowledge on how Django and REST framework works.