Upstream fix for camera permissions issue on Android 5.0

Apologies if this isn't the preferred way to make a note of this, but I've spent the last day or so poking around have figured out what's going on with https://github.com/keybase/client/issues/7329. The problem is an issue with Expo's ImagePicker module trying to use `requestPermissions` even on older versions of Android that don't support runtime permissions (pre-6.0). They have committed a fix upstream (https://github.com/expo/expo/pull/6736), which is supposed to be available in Expo 37. Once that's out, this problem should be fixable by updated the expo image-picker package to the newer version.

Start by checking the Expo ImagePicker dependency declaration and the Android camera-permission path, then compare the available version with the upstream Expo fix and Expo 37. Done means the project uses the fixed ImagePicker package and the Android 5.0 camera-permission issue is covered by an appropriate verification or test.

Written by the indexing model from the issue text.