61064 Handle git dependencies, roll packages to get transitive deps of flutter_gallery (cla: yes, team, tool, waiting for tree to go green)

61128 Update tester to latest version (team)

f: material design - 204 pull request(s)

42940 Revise Action API (cla: yes, f: cupertino, f: material design, framework, team)

50412 Make CircularProgressIndicator’s animation match native (a: fidelity, a: quality, cla: yes, f: material design, framework, waiting for tree to go green)

50673 Update AppBar MediaQuery documentation (cla: yes, d: api docs, f: material design, framework, waiting for tree to go green)