Upgrade black version (#7089)

stdlib/ipaddress.pyi

@@ -90,6 +90,7 @@ class _BaseNetwork(_IPAddressBase, Container[_A], Iterable[_A], Generic[_A]):
     if sys.version_info >= (3, 7):
         def subnet_of(self: Self, other: Self) -> bool: ...
         def supernet_of(self: Self, other: Self) -> bool: ...
+
     def subnets(self: Self, prefixlen_diff: int = ..., new_prefix: int | None = ...) -> Iterator[Self]: ...
     def supernet(self: Self, prefixlen_diff: int = ..., new_prefix: int | None = ...) -> Self: ...
     @property