57162 throw more specific toolexit when git fails during upgrade (cla: yes, tool, waiting for tree to go green)

57167 Remove obsolete UpdateCounted prefix (cla: yes, framework, waiting for tree to go green)

57172 Add option for ExpansionTile to maintain the state of its children when collapsed (cla: yes, f: material design, framework, waiting for tree to go green)

57173 [flutter_tools] allow adb to fail to un forward without crashing (cla: yes, tool, waiting for tree to go green)

57182 [flutter_tools] fix period in URL for androidX incompat (cla: yes, tool, waiting for tree to go green)

57184 [flutter_tools] ensure package_config is re-created if pub get is run (cla: yes, tool, waiting for tree to go green)