Fix linting

Author: Christian Jorgensen

src/skmatter/sample_selection/_base.py

@@ -6,8 +6,8 @@
 from scipy.interpolate import LinearNDInterpolator, interp1d
 from scipy.interpolate._interpnd import _ndim_coords_from_arrays
 from scipy.spatial import ConvexHull
-from sklearn.utils.validation import check_array, check_is_fitted, check_X_y
 from sklearn.base import BaseEstimator
+from sklearn.utils.validation import check_array, check_is_fitted, check_X_y
 
 from .._selection import _CUR, _FPS, _PCovCUR, _PCovFPS