mention flake8 in GHA lint workflow
mention flake8 in GHA lint workflow

StackStorm/st2,Plexxi/st2,nzlosh/st2,StackStorm/st2,StackStorm/st2,nzlosh/st2,Plexxi/st2,nzlosh/st2,Plexxi/st2,StackStorm/st2,nzlosh/st2,Plexxi/st2