Integrate iron-sesson v8

[TimKieu]

@ALL Dear All. I am building next-on-pages webapps with Next-Auth V5 and Iron-session v8. Both of the libs are edge-runtime ready, but I always got error 405 when deploy and run on CF Pages.
Does any one have any suggestions for integration with Iron-session? Or alternative secure Auth options.
Thanks much.

[dario-piotrowicz]

If you're getting 405s then it can be related to this: #679 😕