Fix electron v8

[djskinner]

Goal

Fix the electron tests on v8 branch

Design

Set max_body_size: 25mb on the verdaccio config (local npm where packages are published for the electron tests) to allow for the increased size of @bugsnag/react-nativein v8.

Note the increase in size is expected and is because it contains both prefabs (which are unstripped and have a ton of extra debug info), and the classic JNI .so files. Depending on peoples builds only one gets used, and prefabs are processed before being included in the app. The size of .apk files doesn't get affected, just the .aar files.