appsdk-bump-app-catalog 528 bumping sdk to 2051-fbb238a

sdk commit: RallySoftware/appsdk@3c6bd94f8a1e87b298946ef2218deb7b83c8ca66
author: Matt Parrish
message: Adding client metrics support for 'whenLongerThan' to the clientMetrics config for components

sdk commit: RallySoftware/appsdk@fbb238a48987d3b8c35f430a38b4aecf1395bc42
author: Matt Parrish
message: Revert "Adding client metrics support for 'whenLongerThan' to the clientMetrics config for components"