Ability to skip cookie validation in middleware #129

We currently use graphql for all of our requests from frontend (nextjs and react native) to our backend (Go).
We explicitly add the Authorization header to all those requests, so no need to do the cookie verification in the middleware. This is also causing issues for us because when we use graphiql everything comes back as 401 and we're unable to send debug requests through that tool.

Ideally we could simply add an "Option" (WithSkipCookieVerification): https://github.com/clerkinc/clerk-sdk-go/blob/98a655dfd24721353e05027bece746304748399b/clerk/middleware_v2.go#L46

Thanks