CI checks that can be automatically repaired (#119)

* fix isort & black & toml-sort & sphinx error

* fix ci error

* fix ci error

* add comments

* Update Makefile

* change sphinx build command

* add auto-lint

* add black args

* format with black

* Auto Linting document

* fix ci error

---------

Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>
Co-authored-by: Young <afe.young@gmail.com>

rdagent/core/utils.py

@@ -18,6 +18,7 @@ class SingletonBaseClass:
     Because we try to support defining Singleton with `class A(SingletonBaseClass)`
     instead of `A(metaclass=SingletonMeta)` this class becomes necessary.
     """
+
     _instance_dict: ClassVar[dict] = {}
 
     def __new__(cls, *args: Any, **kwargs: Any) -> Any:
@@ -34,7 +35,6 @@ class SingletonBaseClass:
         return cls._instance_dict[kwargs_hash]
 
 
-
 def parse_json(response: str) -> Any:
     try:
         return json.loads(response)