24154 Roll Fuchsia Linux SDK from _bFb8vcW9… to k80WkJhOL… (cla: yes, waiting for tree to go green)

24156 Roll Clang Mac from CafIgcePd… to hoapl8VNW… (cla: yes, waiting for tree to go green)

24157 [metal] Darwin unified external metal textures (cla: yes, platform-ios, waiting for tree to go green)

24172 Roll Dart SDK from 75251de89baf to 102cf619465d (1 revision) (cla: yes, waiting for tree to go green)

24176 Roll Skia from 9ff7b8d67559 to 20e92f77e2b3 (34 revisions) (cla: yes, waiting for tree to go green)