29241 Add FlutterPlayStoreSplitApplication to v2 embedding (platform-android, cla: yes, waiting for tree to go green, needs tests)

29242 [macOS] Clearing overridden channel should not affect the latest channel (cla: yes, platform-macos)

29243 Roll Skia from 835345aaa349 to e1bfa18fc512 (33 revisions) (cla: yes, waiting for tree to go green)

29244 Roll Dart SDK from 715b701a3108 to 84c74548e30a (6 revisions) (cla: yes, waiting for tree to go green)

29245 Build a specialized snapshot for launching the service isolate in profile mode on Android (platform-android, cla: yes, waiting for tree to go green, needs tests)