fix middleware registration for sanic 22.12.0+

[Zerogoki00]

https://github.com/ahopkins/sanic-session/issues/92

[semmypurewal]

Thanks for contributing this. It helped me solve my problem.

Out of curiosity, why did you choose to do this rather than just uncommenting the @app.middleware("request") and @app.middleware("response") lines? I made that change on my end and it also seems to work. Any particular reason to use the explicit register_middleware API?

[ahopkins]

Wow, I am super late at reviewing this. Sorry about that. We probably should update this to give it a high priority (if in the relevant Sanic version).

[Zerogoki00]

Any update?