4608 [camera]Fix crash due to calling engine APIs from background thread (p: camera, platform-ios)

4630 Revert “[camera]Fix crash due to calling engine APIs from background thread” (waiting for tree to go green, p: camera, platform-ios)

needs tests - 15 pull request(s)

4487 Disable camera/quick_actions tests temporarily  (cla: yes, needs tests)

4494 [package_info] Bump SDK version of example app (cla: yes, waiting for tree to go green, p: package_info, platform-android, needs tests)

4501 [image_picker] Fix iOS RunnerUITests search paths (cla: yes, p: image_picker, platform-ios, needs tests)