77976 Removed ProgressIndicator accentColor dependency. (cla: yes, f: material design, framework, waiting for tree to go green)

77980 Fix sample lint warnings (cla: yes, framework)

77982 Use flutter-cirrus gke cluster for framework tasks. (cla: yes, team, waiting for tree to go green)

77983 Remove MockBuildSystem from generate_synthetic_packages_test (cla: yes, team, tool, waiting for tree to go green)

77985 MockProcessUtils->FakeProcessManager in version_test (cla: yes, team, tool, waiting for tree to go green)

77986 Remove mocks from build_windows_test (cla: yes, team, tool, waiting for tree to go green)

77988 MockOperatingSystemUtils -> FakeOperatingSystemUtils (cla: yes, team, tool, waiting for tree to go green)