fix test format

backend/tests/factories/shipments.py

@@ -1,6 +1,7 @@
 import src.models as models
 import datetime
 
+
 def shipment_factory(**kwargs):
     data = dict(
         id=1,
@@ -11,6 +12,7 @@ def shipment_factory(**kwargs):
     data.update(kwargs)
     return models.Shipment(**data)
 
+
 def shipment_public_factory(**kwargs):
     data = dict(
         id=1,
@@ -23,6 +25,7 @@ def shipment_public_factory(**kwargs):
     data.update(kwargs)
     return models.ShipmentPublic(**data)
 
+
 def shipment_create_factory(**kwargs):
     data = dict(
         name="test shipment",
@@ -33,6 +36,7 @@ def shipment_create_factory(**kwargs):
     data.update(kwargs)
     return models.ShipmentCreate(**data)
 
+
 def shipment_update_factory(**kwargs):
     data = dict(
         name="test shipment",
@@ -43,6 +47,7 @@ def shipment_update_factory(**kwargs):
     data.update(kwargs)
     return models.ShipmentUpdate(**data)
 
+
 def shipment_body_factory(**kwargs):
     data = dict(
         name="test shipment",
@@ -50,4 +55,4 @@ def shipment_body_factory(**kwargs):
         date="2025-10-10",
     )
     data.update(kwargs)
-    return data
+    return data