[Add] ignore flake8 test for examples/vn_trader/run.py
[Add] ignore flake8 test for examples/vn_trader/run.py

msincenselee/vnpy,msincenselee/vnpy,vnpy/vnpy,bigdig/vnpy,bigdig/vnpy,vnpy/vnpy,bigdig/vnpy,msincenselee/vnpy,msincenselee/vnpy,bigdig/vnpy