[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

src/torchjd/autojac/_jac_to_grad.py

@@ -1,6 +1,6 @@
 from collections import deque
 from collections.abc import Iterable
-from typing import cast, TypeGuard
+from typing import TypeGuard, cast
 
 import torch
 from torch import Tensor, nn