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

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

Author: pre-commit-ci[bot]

src/napari_matplotlib/tests/plotting/test_plotting.py

@@ -1,8 +1,9 @@
 import matplotlib.pyplot as plt
 import pytest
 
+
 @pytest.mark.mpl_image_compare
 def test_plot():
     fig, ax = plt.subplots()
     ax.plot([1, 3])
-    return fig
+    return fig

test_gen_figure.py

@@ -1,8 +1,9 @@
 import matplotlib.pyplot as plt
 import pytest
 
+
 @pytest.mark.mpl_image_compare
 def test_plot():
     fig, ax = plt.subplots()
     ax.plot([1, 2])
-    return fig
+    return fig