suppress PyRight/MyPy inconsistency (closes #142)

Author: maxfischer2781

asyncstdlib/contextlib.pyi

@@ -74,7 +74,10 @@ class nullcontext(AsyncContextManager[T]):
     @overload
     def __init__(self: nullcontext[None], enter_result: None = ...) -> None: ...
     @overload
-    def __init__(self: nullcontext[T], enter_result: T) -> None: ...
+    def __init__(
+        self: nullcontext[T],  # pyright: ignore[reportInvalidTypeVarUse]
+        enter_result: T,
+    ) -> None: ...
     async def __aenter__(self: nullcontext[T]) -> T: ...
     async def __aexit__(
         self,