Log Message:
py-django-import-export: updated to 1.2.0

1.2.0:
feat: Better surfacing of validation errors in UI / optional model instance \ 
validation
chore: Use modern setuptools in setup.py
chore: Update URLs to use https://
chore: remove outdated workarounds
chore: Run SQLite tests with in-memory database
fix: Change logging level
fix: Changed get_instance() return val