Update homebrew URL and remove ‘buggy’ label
Update homebrew URL and remove ‘buggy’ label

The ‘buggy’ label was added almost four years ago (bf25069fab320cfceec5321899fff5ba0c196892) without clarification, so we assume it was motivated by issues that have long since been fixed.
nicolaiskogheim/git-extras,aaronshaf/git-extras,chernjie/git-extras,hickey/git-extras,spacewander/git-extras,mcanthony/git-extras,morgangiraud/git-extras,jmatsu/git-extras,phigoro/git-extras,stevemao/git-extras,jgallen23/git-extras,jordansexton/git-extras,GuillaumeSeren/git-extras,rstacruz/git-extras,besarthoxhaj/git-extras,kbingham/git-extras,tj/git-extras,DaleWebb/git-extras,beni55/git-extras,RichardLitt/git-extras,grindhold/git-extras,JorgenEvens/git-extras,edeustace/git-extras,markeissler/git-extras,Natim/git-extras,Lee-W/git-extras,supercrabtree/git-extras,xsyntrex/git-extras,rkennedy/git-extras,akimd/git-extras,chernjie/git-extras,Jeff-Lewis/git-extras,emilkje/git-extras,roth1002/git-extras,gisphm/git-extras,ricardopereira/git-extras,fredatgithub/git-extras,jhnns/git-extras,roth1002/git-extras