Format household_explainer.py with black

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: MaxGhenis

tests/fixtures/endpoints/household_explainer.py

@@ -229,11 +229,14 @@ def config_side_effect(key, default=None):
         return default
 
     # Patch both locations where get_config_value is used
-    with patch(
-        "policyengine_household_api.utils.computation_tree.get_config_value",
-        side_effect=config_side_effect,
-    ), patch(
-        "policyengine_household_api.endpoints.household_explainer.get_config_value",
-        side_effect=config_side_effect,
+    with (
+        patch(
+            "policyengine_household_api.utils.computation_tree.get_config_value",
+            side_effect=config_side_effect,
+        ),
+        patch(
+            "policyengine_household_api.endpoints.household_explainer.get_config_value",
+            side_effect=config_side_effect,
+        ),
     ):
         yield