Django-bulk-update-or-create

What's Changed
* Add installed apps explicit example/instruction by ckcollab in https://github.com/fopina/django-bulk-update-or-create/pull/24
* if not yield_objects, created/updated objects should still be returned by fopina in https://github.com/fopina/django-bulk-update-or-create/pull/36

New Contributors
* ckcollab made their first contribution in https://github.com/fopina/django-bulk-update-or-create/pull/24

**Full Changelog**: https://github.com/fopina/django-bulk-update-or-create/compare/v0.3.0...v0.3.1

a0671fb6fbe8581f79390e3d7960e8df54f8df64 Support for multiple match_field (thanks thejoeejoee)
000243e5c28ed9670819f1a52ec0adbf1b5c25e6 move style check to separate workflow step
1f8066ade6c56b0aec23281ee0cda29b030698c4 `queue_obj` helper method to close 13
cd0a57bff0c62285d953bc76c0f6c709db156249 enable tests for python 3.9 and django 3.2
2cb6682ae02dbf9250dffaeeb36dafc4668c216e coerce values (using match_field Field.to_python) in obj_map to properly match with DB - and fix 11
28dd33bee993bf1b1ac53b823db293b534bd16ff allow empty objs for bulk_update_or_create - close 10