Replace asyncmock with mock 4.x

arkindex/documents/tests/consumers/test_ml_results_consumer.py

 from unittest.mock import patch
-from asyncmock import AsyncMock
+from mock import AsyncMock
 from django.db.models import Q
 from arkindex_common.enums import TranscriptionType, MetaType, EntityType
 from arkindex.project.polygon import Polygon

arkindex/documents/tests/test_admin_api.py

 from unittest.mock import patch
-from asyncmock import AsyncMock
+from mock import AsyncMock
 from django.urls import reverse
 from rest_framework import status
 from arkindex.project.tests import FixtureTestCase

arkindex/documents/tests/test_corpus.py

-from asyncmock import AsyncMock
+from mock import AsyncMock
 from unittest.mock import patch
 from django.contrib.auth.models import AnonymousUser
 from django.db.models import Model, ProtectedError

arkindex/documents/tests/test_ml_results.py

-from asyncmock import AsyncMock
+from mock import AsyncMock
 from unittest.mock import patch
 from django.urls import reverse
 from rest_framework import status

arkindex/documents/tests/test_pagexml.py

 from pathlib import Path
 from unittest.mock import patch
-from asyncmock import AsyncMock
+from mock import AsyncMock
 from django.urls import reverse
 from rest_framework import status
 from arkindex.project.tests import FixtureAPITestCase

arkindex/documents/tests/test_transcription_create.py

 from django.urls import reverse
 from unittest.mock import patch
-from asyncmock import AsyncMock
+from mock import AsyncMock
 from rest_framework import status
 from arkindex.project.tests import FixtureAPITestCase
 from arkindex.project.polygon import Polygon

arkindex/himanis/tests/test_acts_importer.py

 from unittest.mock import patch
 from pathlib import Path
-from asyncmock import AsyncMock
+from mock import AsyncMock
 from arkindex_common.enums import MetaType
 from arkindex.project.tests import FixtureTestCase
 from arkindex.project.polygon import Polygon

arkindex/images/tests/test_perform_check.py

 from unittest.mock import patch, call
-from asyncmock import AsyncMock
+from mock import AsyncMock
 from arkindex.project.aws import S3FileStatus
 from arkindex.project.tests import FixtureTestCase
 import requests

tests-requirements.txt

@@ -4,4 +4,4 @@ django-nose
 coverage
 uritemplate==3
 responses
-asyncmock==0.4.1
+mock~=4.0.0