66742 [flutter_tools] hot reload/restart update for asset manager change (cla: yes, tool)

66748 Improve consistency of top-level help text (cla: yes, tool, waiting for tree to go green)

66755 [flutter_tools] dont let crash reporter crash tool (cla: yes, tool)

66776 [flutter_tools] remove all pub caching logic (cla: yes, tool)

66780 [flutter_tools] do not error doctor on missing vs code extension (cla: yes, tool)

66782 [flutter_tools] do not error flutter doctor on missing AS/intellij plugins (cla: yes, tool)

66787 [flutter_tools] add a mechanism to turn off immediate tool exit (cla: yes, tool)

66801 Minor tool text typo (cla: yes, tool, waiting for tree to go green)