Add Oracle Java 25 URL to linkchecker ignore list

Co-authored-by: commjoen <1457214+commjoen@users.noreply.github.com>

Author: Copilot

.lycheeignore

@@ -24,3 +24,6 @@ https://github.com/OWASP/www-project-wrongsecrets*
 https://developer.hashicorp.com/*
 https://learn.hashicorp.com/*
 https://www.vaultproject.io/*
+
+# Oracle Java downloads page may not have Java 25 anchor yet
+https://www.oracle.com/java/technologies/downloads/#java25