54682 [flutter_tools] update coverage collector to use vmservice api (cla: yes, tool, waiting for tree to go green)

54685 Roll engine 405fe37dcd10..deef2663aca4 (2 commits) (cla: yes, waiting for tree to go green)

54691 Migrate Runner project base configuration (cla: yes, d: examples, t: xcode, team, tool)

54692 [flutter_tools] support machine and coverage together but for real (cla: yes, tool, waiting for tree to go green)

54697 fix APK location for devicelab (cla: yes, team)

54698 Allow headers to be passed to the WebSocket connection for VMServiceFlutterDriver (a: tests, cla: yes, framework, waiting for tree to go green)