Fix monitor-api integration test (linode#586)

* fix test

* lint

Author: yec-akamai

test/integration/conftest.py

@@ -557,7 +557,9 @@ def get_db_status():
 
 
 @pytest.fixture(scope="session")
-def get_monitor_token_for_db_entities(test_linode_client):
+def get_monitor_token_for_db_entities(
+    test_linode_client, test_create_postgres_db
+):
     client = test_linode_client
 
     dbs = client.database.postgresql_instances()

test/integration/models/monitor_api/test_monitor_api.py

@@ -9,4 +9,3 @@ def test_monitor_api_fetch_dbaas_metrics(test_monitor_client):
     )
 
     assert metrics.status == "success"
-    assert len(metrics.data.result) > 0