(chore) fix deployment_history test

Author: declan-scale

tests/api_resources/test_deployment_history.py

@@ -8,12 +8,13 @@
 import pytest
 
 from agentex import Agentex, AsyncAgentex
-from tests.utils import assert_matches_type
 from agentex.types import (
     DeploymentHistoryListResponse,
     DeploymentHistoryRetrieveResponse,
 )
 
+from ..utils import assert_matches_type
+
 base_url = os.environ.get("TEST_API_BASE_URL", "http://127.0.0.1:4010")