[4/N][Easy] fix typo for usort config in pyproject.toml (kown -> known): sort functorch (#127125)

The `usort` config in `pyproject.toml` has no effect due to a typo. Fixing the typo make `usort` do more and generate the changes in the PR. Except `pyproject.toml`, all changes are generated by `lintrunner -a --take UFMT --all-files`.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/127125
Approved by: https://github.com/Skylion007
ghstack dependencies: #127122, #127123, #127124

test/functorch/test_eager_transforms.py

@@ -15,8 +15,6 @@ import unittest
 import warnings
 from functools import partial, wraps
 
-import functorch
-
 # NB: numpy is a testing dependency!
 import numpy as np
 import torch
@@ -24,21 +22,6 @@ import torch.autograd.forward_ad as fwAD
 import torch.nn as nn
 import torch.nn.functional as F
 from common_utils import expectedFailureIf
-from functorch import (
-    combine_state_for_ensemble,
-    grad,
-    grad_and_value,
-    hessian,
-    jacfwd,
-    jacrev,
-    jvp,
-    make_functional,
-    make_functional_with_buffers,
-    make_fx,
-    vjp,
-    vmap,
-)
-from functorch.experimental import functionalize, replace_all_batch_norm_modules_
 from torch._C import _ExcludeDispatchKeyGuard, DispatchKey, DispatchKeySet
 from torch._dynamo import allow_in_graph
 from torch._functorch.eager_transforms import _slice_argnums
@@ -81,6 +64,23 @@ from torch.testing._internal.common_utils import (
 
 from torch.utils._pytree import tree_flatten, tree_map, tree_unflatten
 
+import functorch
+from functorch import (
+    combine_state_for_ensemble,
+    grad,
+    grad_and_value,
+    hessian,
+    jacfwd,
+    jacrev,
+    jvp,
+    make_functional,
+    make_functional_with_buffers,
+    make_fx,
+    vjp,
+    vmap,
+)
+from functorch.experimental import functionalize, replace_all_batch_norm_modules_
+
 USE_TORCHVISION = False
 try:
     import torchvision  # noqa: F401