Update pbr to 5.4.0 (#11794)
Update pbr to 5.4.0 (#11794)

Update pbr to 5.4.0
wagnerand/addons-server,bqbn/addons-server,diox/olympia,diox/olympia,wagnerand/addons-server,eviljeff/olympia,diox/olympia,eviljeff/olympia,diox/olympia,psiinon/addons-server,mozilla/addons-server,mozilla/addons-server,bqbn/addons-server,mozilla/addons-server,mozilla/olympia,wagnerand/addons-server,mozilla/olympia,wagnerand/addons-server,mozilla/olympia,psiinon/addons-server,bqbn/addons-server,mozilla/addons-server,psiinon/addons-server,bqbn/addons-server,mozilla/olympia,eviljeff/olympia,eviljeff/olympia,psiinon/addons-server