4354 [local_auth] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: local_auth, platform-ios)

4355 [path_provider] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: path_provider, platform-ios)

4356 [quick_actions] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: quick_actions, platform-ios)

4357 [shared_preferences] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: shared_preferences, platform-ios)

4358 [camera_platform_interface] Add web-relevant docs (cla: yes, waiting for tree to go green, p: camera)