fix nullable

Author: giancarloromeo

services/director-v2/src/simcore_service_director_v2/models/comp_tasks.py

@@ -150,7 +150,7 @@ class CompTaskAtDB(BaseModel):
     created: Annotated[dt.datetime, BeforeValidator(validate_legacy_datetime_str)]
     modified: Annotated[dt.datetime, BeforeValidator(validate_legacy_datetime_str)]
     # Additional information about price and hardware (ex. AWS EC2 instance type)
-    pricing_info: dict | None
+    pricing_info: dict | None = None
     hardware_info: HardwareInfo
 
     @field_validator("state", mode="before")

services/director-v2/tests/unit/test_utils_computation.py

@@ -27,7 +27,7 @@ def fake_task_file(mocks_dir: Path):
 
 @pytest.fixture(scope="session")
 def fake_task(fake_task_file: Path) -> CompTaskAtDB:
-    return CompTaskAtDB.parse_file(fake_task_file)
+    return CompTaskAtDB.model_validate_json(fake_task_file.read_text())
 
 
 # NOTE: these parametrizations are made to mimic something like a sleepers project