Update homebrew PR naming in RELEASE_PROCESS
Update homebrew PR naming in RELEASE_PROCESS

see https://github.com/Homebrew/homebrew-core/pull/5160
where zmwangx informed me of their preferred PR
naming scheme.

ponylang/ponyc,mkfifo/ponyc,jupvfranco/ponyc,dipinhora/ponyc,sgebbie/ponyc,dipinhora/ponyc,sgebbie/ponyc,cquinn/ponyc,jemc/ponyc,jupvfranco/ponyc,cquinn/ponyc,mkfifo/ponyc,kulibali/ponyc,Perelandric/ponyc,Theodus/ponyc,malthe/ponyc,dipinhora/ponyc,ponylang/ponyc,CausalityLtd/ponyc,Theodus/ponyc,mkfifo/ponyc,Perelandric/ponyc,jemc/ponyc,CausalityLtd/ponyc,ponylang/ponyc,Praetonus/ponyc,boemmels/ponyc,Theodus/ponyc,cquinn/ponyc,kulibali/ponyc,Theodus/ponyc,malthe/ponyc,jemc/ponyc,malthe/ponyc,Perelandric/ponyc,Praetonus/ponyc,malthe/ponyc,Perelandric/ponyc,sgebbie/ponyc,sgebbie/ponyc,CausalityLtd/ponyc,Theodus/ponyc,boemmels/ponyc,boemmels/ponyc,cquinn/ponyc,jupvfranco/ponyc,boemmels/ponyc,kulibali/ponyc,sgebbie/ponyc,boemmels/ponyc,jupvfranco/ponyc,Praetonus/ponyc,kulibali/ponyc,mkfifo/ponyc,mkfifo/ponyc,Perelandric/ponyc,Praetonus/ponyc,jupvfranco/ponyc