Fix CI/CD issues: linting errors and test file corruption

dataforge/type_check.py

@@ -37,7 +37,9 @@ def parse_type_spec(type_spec: TypeSpec) -> Tuple[str, Optional[Dict[str, Any]]]
         return "unknown", None
 
 
-def check_type(value: Any, expected_type: TypeSpec) -> Tuple[bool, Optional[str]]:
+def check_type(
+    value: Any, expected_type: TypeSpec
+) -> Tuple[bool, Optional[str]]:
     """Check if a value matches the expected type specification."""
     actual_type = infer_type(value)
     type_name, type_info = parse_type_spec(expected_type)
@@ -73,7 +75,9 @@ def check_type(value: Any, expected_type: TypeSpec) -> Tuple[bool, Optional[str]
     return True, None
 
 
-def validate_types(data: Any, type_spec: TypeSpec, path: str = "root") -> List[str]:
+def validate_types(
+    data: Any, type_spec: TypeSpec, path: str = "root"
+) -> List[str]:
     """Validate data against a type specification and return all errors."""
     errors = []
     valid, error = check_type(data, type_spec)