Following the initiative to address Javadoc warnings (gh-18443), this PR fixes warnings in the spring-security-acl module and applies the shared build plugin to enforce zero warnings.

1. Fix Javadoc Warnings in spring-security-acl
   Resolved a broken reference warning in AclPermissionEvaluator by correcting a malformed {@link} tag (removed unnecessary package qualification).

2. Apply Build Plugin: javadoc-warnings-error
   Applied the javadoc-warnings-error plugin to the spring-security-acl build configuration.
   This ensures the build will fail if any Javadoc warning occurs, preventing warnings from being introduced in the future.

close #18445