ci(flake8): Up ignore

Author: tony

setup.cfg

@@ -3,7 +3,7 @@ exclude = .*/,.tox,*.egg,tmuxp/_compat.py,tmuxp/__*__.py,
 select = E,W,F,N
 max-line-length = 88
 # Stuff we ignore thanks to black: https://github.com/ambv/black/issues/429
-extend-ignore = E203
+extend-ignore = E203,W503
 
 [tool:pytest]
 addopts = --reruns=0