feat: rearranged test modules in workflow to uniformly distribute the…

… time taken

.github/workflows/django_tests_against_emulator0.yml

@@ -29,4 +29,4 @@ jobs:
           GOOGLE_CLOUD_TESTS_CREATE_SPANNER_INSTANCE: true
           RUNNING_SPANNER_BACKEND_TESTS: 1
           SPANNER_TEST_INSTANCE: google-cloud-django-backend-tests
-          DJANGO_TEST_APPS: model_fields model_forms
+          DJANGO_TEST_APPS: admin_changelist admin_ordering aggregation choices distinct_on_fields expressions_window fixtures_model_package datetimes custom_methods generic_inline_admin field_defaults datatypes empty m2o_recursive many_to_one_null migration_test_data_persistence admin_docs invalid_models_tests migrate_signals model_forms.test_uuid model_forms.test_modelchoicefield syndication_tests view_tests update test_utils select_related_onetoone sessions_tests db_functions save_delete_hooks get_object_or_404 model_indexes custom_pk indexes transaction_hooks constraints schema custom_columns i18n from_db_value sites_tests mutually_referential model_package defer_regress update_only_fields backends redirects_tests expressions get_or_create foreign_object generic_relations_regress many_to_many select_related generic_relations queryset_pickle model_inheritance

.github/workflows/django_tests_against_emulator1.yml

@@ -29,4 +29,4 @@ jobs:
           GOOGLE_CLOUD_TESTS_CREATE_SPANNER_INSTANCE: true
           RUNNING_SPANNER_BACKEND_TESTS: 1
           SPANNER_TEST_INSTANCE: google-cloud-django-backend-tests
-          DJANGO_TEST_APPS: mutually_referential nested_foreign_keys null_fk null_fk_ordering null_queries one_to_one ordering order_with_respect_to or_lookups
+          DJANGO_TEST_APPS: model_options known_related_objects m2m_signals delete_regress fixtures generic_views model_inheritance_regress nested_foreign_keys signals or_lookups m2m_through_regress filtered_relation servers m2m_through fixtures_regress timezones model_forms.tests

.github/workflows/django_tests_against_emulator2.yml

@@ -29,4 +29,4 @@ jobs:
           GOOGLE_CLOUD_TESTS_CREATE_SPANNER_INSTANCE: true
           RUNNING_SPANNER_BACKEND_TESTS: 1
           SPANNER_TEST_INSTANCE: google-cloud-django-backend-tests
-          DJANGO_TEST_APPS: migration_test_data_persistence max_lengths migrate_signals select_for_update queries
+          DJANGO_TEST_APPS: introspection multiple_database null_fk_ordering ordering m2m_intermediary null_fk max_lengths dates force_insert_update test_client m2m_multiple test_client_regress sitemaps_tests admin_inlines transactions null_queries test_runner m2m_and_m2o prefetch_related file_storage m2m_recursive reverse_lookup managers_regress basic annotations unmanaged_models string_lookup aggregation_regress reserved_names select_for_update model_formsets many_to_one cache select_related_regress flatpages_tests model_formsets_regress lookup delete

.github/workflows/django_tests_against_emulator3.yml

@@ -29,4 +29,4 @@ jobs:
           GOOGLE_CLOUD_TESTS_CREATE_SPANNER_INSTANCE: true
           RUNNING_SPANNER_BACKEND_TESTS: 1
           SPANNER_TEST_INSTANCE: google-cloud-django-backend-tests
-          DJANGO_TEST_APPS: sitemaps_tests sites_framework sites_tests string_lookup syndication_tests test_client test_client_regress test_runner test_utils timezones
+          DJANGO_TEST_APPS: model_fields queries.test_bulk_update queries.test_explain queries.test_iterator queries.test_q queries.test_query queries.test_qs_combinators

.github/workflows/django_tests_against_emulator4.yml

@@ -29,4 +29,4 @@ jobs:
           GOOGLE_CLOUD_TESTS_CREATE_SPANNER_INSTANCE: true
           RUNNING_SPANNER_BACKEND_TESTS: 1
           SPANNER_TEST_INSTANCE: google-cloud-django-backend-tests
-          DJANGO_TEST_APPS: admin_inlines admin_ordering aggregation migrations
+          DJANGO_TEST_APPS: m2m_regress file_uploads sites_framework auth_tests forms_tests inline_formsets order_with_respect_to contenttypes_tests defer inspectdb custom_managers migrations validation get_earliest_or_latest proxy_model_inheritance one_to_one raw_query bulk_create

.github/workflows/django_tests_against_emulator5.yml

@@ -29,4 +29,4 @@ jobs:
           GOOGLE_CLOUD_TESTS_CREATE_SPANNER_INSTANCE: true
           RUNNING_SPANNER_BACKEND_TESTS: 1
           SPANNER_TEST_INSTANCE: google-cloud-django-backend-tests
-          DJANGO_TEST_APPS: custom_columns custom_managers custom_methods custom_pk datatypes dates datetimes db_functions defer defer_regress
+          DJANGO_TEST_APPS: queries.tests