Recently merged test hangs on `input()` call

[jacobtylerwalls]

On CI, we're getting an EOFError emanating from an input() call. Locally the situation is worse, it just hangs.

To reproduce:

python manage.py test tests.search.search_export_tests --settings="tests.test_settings"

Result: hangs:

Stacktrace from CTRL-C'ing:

  File "/Users/jwalls/prj/arches/tests/search/search_export_tests.py", line 66, in setUpTestData
    cls.ensure_test_resource_models_are_loaded()
  File "/Users/jwalls/prj/arches/tests/base_test.py", line 110, in ensure_test_resource_models_are_loaded
    errs, importer = ResourceGraphImporter(
                     ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jwalls/prj/arches/arches/app/utils/data_management/resource_graphs/importer.py", line 152, in import_graph
    overwrite_input = input(

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cc/ @whatisgalen @apeters

[jacobtylerwalls]

This might have to do with the way graph fixtures are now loaded per test case in ArchesTestCase. I have a fix in progress for #10719 which probably will take care of this.