23487 Roll Skia from d64a3193cd49 to be0b3b7363a9 (3 revisions) (cla: yes, waiting for tree to go green)

23488 Switched engine to use buffer collection. (cla: yes)

23489 [tests] Normalize SkImage before comparison. (cla: yes)

23491 Implements accessibility bridge in common library (accessibility, affects: desktop, cla: yes, waiting for tree to go green)

23493 SDK constraints are now just generally required (cla: yes, waiting for tree to go green)

23494 Sync the pull request template with the flutter/flutter version (cla: yes)

23495 State Restoration for iOS (cla: yes, platform-ios, waiting for tree to go green)