fixed binding uuid column to str with dashes

ormar/__init__.py

@@ -30,7 +30,7 @@ class UndefinedType:  # pragma no cover
 
 Undefined = UndefinedType()
 
-__version__ = "0.5.4"
+__version__ = "0.6.0"
 __all__ = [
     "Integer",
     "BigInteger",

ormar/fields/sqlalchemy_uuid.py

@@ -37,7 +37,7 @@ class UUID(TypeDecorator):  # pragma nocover
             return value
         if not isinstance(value, uuid.UUID):
             value = self._cast_to_uuid(value)
-        return "%.32x" % value.int
+        return str(value)
 
     def process_result_value(
         self, value: Optional[str], dialect: DefaultDialect