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

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Author: pre-commit-ci[bot]

brainglobe_heatmap/plane.py

@@ -4,6 +4,7 @@
 import vedo as vd
 from brainrender.actor import Actor
 
+
 class Plane:
     def __init__(
         self, origin: np.ndarray, u: np.ndarray, v: np.ndarray