Apply black formatting to fix CI lint-formatting drift

20 files had fallen out of sync with the project's black version;
running `black .` brings them back in line with no logic changes.

src/ifcopenshell-python/test/test_rules.py

@@ -46,4 +46,4 @@ def test_file(filename):
 
 
 if __name__ == "__main__":
-    pytest.main(["-sx", __file__, '--import-mode=importlib'])
+    pytest.main(["-sx", __file__, "--import-mode=importlib"])