82564 Migrate to ChannelBuffers.push (a: tests, team, framework, f: material design, a: accessibility, cla: yes, f: cupertino, d: examples, waiting for tree to go green)

82569 Fix analysis errors (team, cla: yes)

82577 Update dependency versions (team, cla: yes)

82581 [flutter_releases] Flutter Framework Engine roll (team, tool, framework, engine, f: material design, a: internationalization, cla: yes)

82582 disable semantics in text_editing_integration.dart (team, cla: yes, waiting for tree to go green)

82584 Add cmdline tools to docker image. (team, cla: yes)