pusher-js 8.5.0 on Node.js Yarn

8.5.0

[ADDED] New switchCluster method on Pusher instances to switch cluster/app without losing channel subscriptions (PR #773)
[FIXED] Persist previous options when switching cluster so custom handlers and other settings are retained (PR #783)
[FIXED] Refactored AuthOptionsT to a discriminated union (InternalAuthOptions | CustomAuthOptions) for improved type safety
[FIXED] Integration tests now run HTTP tests before HTTPS to avoid browser Strict-Transport-Security downgrade issues