refactor(tests): use idiomatic pytest.raises instead of try-except for SystemExit

Author: chalmerlowe

scripts/version_scanner/tests/unit/test_version_scanner.py

@@ -327,10 +327,8 @@ def test_main_loads_ignore_from_script_dir(mock_scan, mock_load_ignore):
 
     with mock.patch('sys.argv', test_args):
         from version_scanner import main
-        try:
+        with pytest.raises(SystemExit):
             main()
-        except SystemExit:
-            pass
 
     mock_load_ignore.assert_called_once()
     args, kwargs = mock_load_ignore.call_args