Fix after_success causing deploy step disappear (#2271)
Fix after_success causing deploy step disappear (#2271)

Ref aio-libs/multidict#135
Ref travis-ci/travis-ci#8337
playpauseandstop/aiohttp,rutsky/aiohttp,arthurdarcet/aiohttp,hellysmile/aiohttp,KeepSafe/aiohttp,pfreixes/aiohttp,arthurdarcet/aiohttp,pfreixes/aiohttp,arthurdarcet/aiohttp,rutsky/aiohttp,KeepSafe/aiohttp,rutsky/aiohttp,hellysmile/aiohttp,KeepSafe/aiohttp