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

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

tests/test_backend/test_directx/test_preprocessor.py

@@ -1,6 +1,7 @@
 import unittest
 from DirectxPreprocessor import DirectxPreprocessor
 
+
 class TestDirectxPreprocessor(unittest.TestCase):
 
     def test_preprocessor_with_defines_and_ifdef(self):
@@ -105,5 +106,6 @@ def test_preprocessor_with_invalid_include(self):
         with self.assertRaises(FileNotFoundError):
             preprocessor.preprocess(shader_code)
 
+
 if __name__ == "__main__":
-    unittest.main()
+    unittest.main()