Fix OIDC Logout docs: Session Strategy vs. Registry#15686

jzheaux merged 2 commits intospring-projects:6.2.xspring-projects/spring-security:6.2.xfrom

hwanders:docs/oidc-logout-rename-session-strategy-to-registryhwanders/spring-security:docs/oidc-logout-rename-session-strategy-to-registryCopy head branch name to clipboard