56564 [flutter_tools] ensure track-widget-creation can be changed on devcompiler (cla: yes, tool, waiting for tree to go green)

56568 Remove semantics node generated by ExcludeFocus (cla: yes, waiting for tree to go green)

56575 Roll new gallery version in the perf test (cla: yes, severe: performance, team, waiting for tree to go green)

56582 Update Tab semantics in Cupertino to be the same as Material (a: accessibility, a: internationalization, cla: yes, f: cupertino, framework, severe: API break, waiting for tree to go green)

56589 Added MaterialStateProperty.all() convenience method (cla: yes)

56594 Shard firebase_test_lab_tests (cla: yes, team)

56596 add web benchmark that measures efficiency of clipped out pictures (cla: yes, team)