Unexpected primitive based Enum (de)serialization

### Apache Airflow version main (development) ### If "Other Airflow 2 version" selected, which one? _No response_ ### What happened? When enumeration inherits some primitive type (e.g. str, int), deserialization makes the value primitive as well. ```python import enum from airflow.serialization.serde import deserialize, serialize class MyEnum(enum.IntEnum): A = 1 B = 2 value = MyEnum.A res = deserialize(serialize(value)) assert res is MyEnum.A, f'{type(res)=}, {res=}' # AssertionError: type(res)=<class 'int'>, res=1 ``` ### What you think should happen instead? This is little unexpected for me as a user and for mypy ```python @task def my_task(v: MyEnum): assert is instance(v, MyEnum), 'fine for mypy, fails in runtime' v = MyEnum(v) ... my_task(MyEnum.A) ``` The other issue is that if I add airflow compatible custom serialization the result is incorrect too ```python class MyEnum(enum.IntEnum): A = 1 B = 2 def serialize(self): return f'{self.name}.{self.value}' res = serialize(MyEnum.A) assert res == 'A.1', f'{type(res)=}, {res=}' # AssertionError: type(res)=<class 'int'>, res=1 ``` I would expect one of - implement default serialization and deserialization for enums - fail with `TypeError: cannot serialize object of type <enumeration 'MyEnum'>` unless it implements the interface and is registered for deserialization (as it happens for enums that do not inherit primitive) ### How to reproduce See the snippet above ### Operating System Debian GNU/Linux 12 (bookworm) ### Versions of Apache Airflow Providers _No response_ ### Deployment Virtualenv installation ### Deployment details _No response_ ### Anything else? _No response_ ### Are you willing to submit PR? - [x] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)