83311 Migrate deferred_components_gen_snapshot_validator to null safety (team, tool, cla: yes, waiting for tree to go green, a: null-safety)

83315 rsync instead of delete and copy Flutter.xcframework for add to app (team, platform-ios, tool, cla: yes, a: existing-apps, waiting for tree to go green, t: xcode)

83356 [flutter_tools] Add documentation to “cmdline-tools component is missing” doctor validation error (tool, cla: yes, waiting for tree to go green)

83367 [versions] roll package test redux (team, tool, cla: yes)

83369 Update flutter_tools README with tips (tool, cla: yes, waiting for tree to go green)