27149 fuchsia: Handle clips on platform views (cla: yes, platform-fuchsia, needs tests)

27189 MacOS: Release backbuffer surface when idle (cla: yes, waiting for tree to go green, platform-macos, needs tests)

27191 MacOS (metal): Block raster thread instead of platform thread (cla: yes, waiting for tree to go green, platform-macos, needs tests)

27222 Emit more info while running pre-push githooks (cla: yes, needs tests)

27226 [fuchsia] make dart_runner work with cfv2 (cla: yes, platform-fuchsia, needs tests)

27227 Remove unnecessary variable assignment (cla: yes, platform-windows, needs tests)

27238 Remove sky_services, flutter_services (cla: yes, needs tests)