Pin the version of isort in the test requirements
Pin the version of isort in the test requirements

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