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

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Author: pre-commit-ci[bot]

tests/unit/aggregation/test_aligned_mtl.py

@@ -1,11 +1,10 @@
 import torch
 from pytest import mark, raises
 from torch import Tensor
+from utils.tensors import ones_
 
 from torchjd.aggregation import AlignedMTL
 
-from utils.tensors import ones_
-
 from ._asserts import assert_expected_structure, assert_permutation_invariant
 from ._inputs import scaled_matrices, typical_matrices