Fix providers.Resource missing overloads for AbstractContextManager and AbstractAsyncContextManager

[leonarduschen]

Addresses #926

---

Demo

# main.py

import asyncio
from collections.abc import AsyncIterator, Iterator
from contextlib import asynccontextmanager, contextmanager
from typing import reveal_type

from dependency_injector import containers, providers


@contextmanager
def _get_my_int() -> Iterator[int]:
    yield 1


@asynccontextmanager
async def _a_get_my_int() -> AsyncIterator[int]:
    yield 1


class Container(containers.DeclarativeContainer):
    get_my_int = providers.Resource(_get_my_int)
    a_get_my_int = providers.Resource(_a_get_my_int)


async def main() -> None:
    container = Container()
    my_int = container.get_my_int()
    reveal_type(my_int)

    a_my_int = await container.a_get_my_int.async_()
    reveal_type(a_my_int)


if __name__ == "__main__":
    asyncio.run(main())

Runtime:

python main.py
Runtime type is 'int'
Runtime type is 'int'

Mypy output before changing stubs

mypy main.py
main.py:29: note: Revealed type is "contextlib._GeneratorContextManager[builtins.int, None, None]"
main.py:32: note: Revealed type is "contextlib._AsyncGeneratorContextManager[builtins.int, None]"

Mypy output after changing stubs

mypy main.py
main.py:29: note: Revealed type is "builtins.int"
main.py:32: note: Revealed type is "builtins.int"

[leonarduschen]

Test 10 and 12 (classes implementing __(a)enter__/__(a)exit__) were actually already passing because of the first overload Callable[..., T], but I added these tests anyway because they were not covered yet.

[coveralls]

coverage: 95.057%. remained the same
when pulling 4bc7e5d on leonarduschen:fix-resource-stubs
into 5acddac on ets-labs:develop.

[ZipFile]

Thanks!