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

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

Author: pre-commit-ci[bot]

cf_xarray/helpers.py

@@ -312,7 +312,6 @@ def _get_ordered_vertices(
     if _is_bounds_monotonic(bounds):
         vertices = np.concatenate((bounds[..., :, 0], bounds[..., -1:, 1]), axis=-1)
     else:
-
         if order == "ascending":
             endpoints = np.minimum(bounds[..., :, 0], bounds[..., :, 1])
             last_endpoint = np.maximum(bounds[..., -1, 0], bounds[..., -1, 1])