Re-enable pusher-http-haskell
Re-enable pusher-http-haskell

Remove pusher-http-haskell from "GHC 8.8 bounds failures". It's compatible with base-4.13 since 1.5.1.11.
stackbuilders/stackage,mrkkrp/stackage,massysett/stackage,michalkonecny/stackage,soenkehahn/stackage,Daniel-Diaz/stackage,fpco/stackage,jonschoning/stackage,athanclark/stackage,asr/stackage,spencerjanssen/stackage,simonmichael/stackage,iand675/stackage,clinty/stackage,fimad/stackage