Let use getUserHook for @UseAbility() guard

[skilef]

At the moment, only the user from the HTTP request is available in the context of ability check.

nest-casl/src/access.service.ts

Line 57 in 6a012da

const userProxy = new UserProxy(request, getUserFromRequest);

Instead, use the user from the user hook:

nest-casl/src/access.guard.ts

Line 27 in 6a012da

req.setUserHook(await userHookFactory(this.moduleRef, getUserHook));