chore: upgrade @feathersjs/hooks

[bertho-zero]

Works with feathersjs/hooks#67

[daffl]

Awesome. Hopefully getting out a new pre-release this weekend!

[daffl]

This has been published in v5.0.0-pre.1 for beta testing. I'm wondering if we should have another pass to use the @feathersjs/hooks functionality more directly (instead of e.g. keeping service.__hooks around). This might also play into some other changes like

• Removing Uberproto and instead using ES6 classes and Object.create to extend service (started looking into that yesterday but had to look into some other things to wrap up)
• Another TypeScript refactoring pass turning the Application from a mixin into a class and improving service, configuration (app.get) and hook context type-ability
• Allowing custom methods on all transports (discussion in Custom methods the Feathers way #1976)

[bertho-zero]

The mixin on services is only used to return the context if we have true as the last argument, we can remove it to rely only on @feathersjs/hooks.

However, I don't see how to remove Uberproto for the Express app merge in the Feathers app.