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

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tests/python/test_ggui.py

@@ -297,6 +297,7 @@ def render():
 def test_exit_without_showing():
     window = ti.ui.Window("Taichi", (256, 256), show_window=False)
 
+
 @pytest.mark.skipif(not _ti_core.GGUI_AVAILABLE, reason="GGUI Not Available")
 @test_utils.test(arch=supported_archs)
 def test_get_camera_view_and_projection_matrix():