3674 Update CI config for Flutter 2 (cla: yes, p: wifi_info_flutter, platform-ios)

3676 [image_picker] fix flutter/flutter#71927 (cla: yes, p: image_picker, platform-ios, waiting for tree to go green)

3694 [extension_google_sign_in_as_googleapis_auth] Deleted. (cla: yes, p: google_sign_in, platform-android, platform-ios, platform-web)