Update RP-Initiated Logout target URLs

[rozagerardo]

The URLs we're using are not actually pointing to the OIDC RP-Initiated Logout Specs.

Fixes: gh-12081

[jzheaux]

Hi, @rozagerardo! Thanks for the PR. Will you please rebase in on the earliest branch that has the issue? We've recently moved to forward-porting fixes from the earliest supported branch, which is 5.6.x in this case.

[jzheaux]

Also, if you run ./gradlew format, I think it will update the formatting of the JavaDoc so that the PR build passes.

[rozagerardo]

Sure @jzheaux , sorry about that, I missed the guidelines indicating to create the branch from the oldest maintenance branch :)

I now fixed that, re-formated the files as required, and edited the PR to point to 5.6.x 👍

Just to be clear I understood this correctly, even though we started using the links since 5.2.x, we're pointing to 5.6.x because we're currently maintaining versions from 5.6.x and above (as per the Milestones that are being actively developed) correct?

Cool, hope the PR looks good now, thanks for the patience!

[jzheaux]

Yes, @rozagerardo, that's right.

I've just merged this to 5.6.x, 5.7.x, 5.8.x, and main. Thanks again!