Log Message:
py-djangorestframework: updated to 3.9.2

3.9.2:
Routers: invalidate _urls cache on register()
Deferred schema renderer creation to avoid requiring pyyaml.
Added 'request_forms' block to base.html
Fixed SchemaView to reset renderer on exception.
Update Django Guardian dependency.
Ensured support for Django 2.2.
Made templates compatible with session-based CSRF.
Adjusted field validators to accept non-list iterables.
Added SearchFilter.get_search_fields() hook.
Fix DeprecationWarning when accessing collections.abc classes via collections
Allowed Q objects in limit_choices_to introspection.
Added lazy evaluation to composed permissions.
Add negation ~ operator to permissions composition
Avoided calling distinct on annotated fields in SearchFilter.
Introduced RemovedInDRF…Warning classes to simplify deprecations.