74666 Roll Engine from 05b4bec8b3c1 to 45579893b117 (24 revisions) (cla: yes, waiting for tree to go green)

74669 default CupertinoSliverNavigationBar’s stretch to false (cla: yes, f: cupertino, framework, waiting for tree to go green)

74671 Roll packages (a: tests, cla: yes, framework, team, tool, waiting for tree to go green)

74672 [flutter_tools] check if process manager can find adb (cla: yes, tool, waiting for tree to go green)

74675 Remove unused deploy_gallery.sh (cla: yes, team, waiting for tree to go green)

74680 Remove nullOk from Actions.invoke, add Actions.maybeInvoke (cla: yes, framework)