bridge/appsdk-bump-app-catalog 391 bumping sdk to almci-master-3169-770f8c1

sdk commit: RallySoftware/appsdk@df56cd20f323fcb35d31c61fd6befd2238e2ff9d
author: Jonathan Baker and Rick Lansky
message: S74501: Show predecessor/successor on grids

sdk commit: RallySoftware/appsdk@770f8c1fab5f3f681ca8ed3d13bbb7d91e264ef2
author: Jonathan Baker and Rick Lansky
message: Fixing test for adding predecessors/successors icon to grid columns