test/retry: update for heaped peer selection
test/retry: update for heaped peer selection

vanloswang/tchannel,Zirpon/tchannel,savaki/tchannel,hustxiaoc/tchannel,benfleis/tchannel,Zirpon/tchannel,Zirpon/tchannel,benfleis/tchannel,hustxiaoc/tchannel,chenwenbin928/tchannel,RyanTech/tchannel,chenwenbin928/tchannel,bunnyblue/tchannel,vanloswang/tchannel,sasa233/tchannel,sasa233/tchannel,bunnyblue/tchannel,i/tchannel,i/tchannel,bunnyblue/tchannel,sasa233/tchannel,savaki/tchannel,benfleis/tchannel,RyanTech/tchannel,hustxiaoc/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,savaki/tchannel,RyanTech/tchannel,i/tchannel