v1.2.3 of image_picker

Flutter plugin for selecting images from the Android and iOS image library, and taking new pictures with the camera. Changelog excerpt: - Fixes pickMultiImage(limit: 1)and pickMultipleMedia(limit: 1)throwing an ArgumentErrorby delegating to single-item pickers when limitis exactly 1, since the platform interface requires limit >= 2for multi-selection. - Updates minimum supported SDK version to Flutter 3.38/Dart 3.10.