69420 [flutter_tools] Make flutter upgrade –verify-only display framework version differences instead of commit hashes (cla: yes, tool, waiting for tree to go green)

69450 [flutter_tools] do not reload sources if no sources changed (cla: yes, tool)

69505 [flutter_tools] remove all globals from cache and cache_test (cla: yes, tool)

69547 [flutter_tools] remove unused or no longer useful code (cla: yes, tool, waiting for tree to go green)

69548 [flutter_tools] remove globals from android_workflow (cla: yes, tool)

69549 [flutter_tool] initialize flutter root in executable (cla: yes, team, tool)

69550 [flutter_tools] add canvaskit hot reload integration test (cla: yes, tool)