fix(gitlab): add missing imports for MockerFixture and Environment

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: asaphko

api/tests/unit/integrations/gitlab/test_unit_gitlab_mappers.py

@@ -1,4 +1,5 @@
 import pytest
+from pytest_mock import MockerFixture
 
 from environments.models import Environment
 from features.models import Feature, FeatureState

api/tests/unit/integrations/gitlab/test_unit_gitlab_services.py

@@ -6,11 +6,12 @@
 from rest_framework import status
 from rest_framework.test import APIClient
 
+from environments.models import Environment
 from features.feature_external_resources.models import (
     FeatureExternalResource,
     ResourceType,
 )
-from features.models import Feature
+from features.models import Feature, FeatureState
 from integrations.gitlab.constants import GitLabEventType, GitLabTag
 from integrations.gitlab.models import GitLabConfiguration
 from integrations.gitlab.services import (