Support Django 4.1.7 and 4.2

[ely-as]

Django 4.2 introduces one new setting and deprecates two settings.

From Django 4.2 release notes | Django documentation | Django:

The new STORAGES setting allows configuring multiple custom file storage backends. It also controls storage engines for managing files (the "default" key) and static files (the "staticfiles" key).

The old DEFAULT_FILE_STORAGE and STATICFILES_STORAGE settings are deprecated as of this release.

[ely-as]

Django 4.1.7 (and 3.2.18 and 4.0.10) also introduced one new setting.

From Django 4.1.7 release notes | Django documentation | Django:

Passing certain inputs to multipart forms could result in too many open files or memory exhaustion, and provided a potential vector for a denial-of-service attack.

The number of files parts parsed is now limited via the new DATA_UPLOAD_MAX_NUMBER_FILES setting.