chore: update RN for 1.6.2 advisory link (#1239)

Signed-off-by: RHDH Build (rhdh-bot) <[email protected]>
Co-authored-by: RHDH Build (rhdh-bot) <[email protected]>

Author: nickboldt

modules/release-notes/ref-release-notes-fixed-security-issues.adoc

@@ -4,6 +4,6 @@
 
 You can view the security issues fixed in {product} {product-version} at link:https://access.redhat.com/security/security-updates/cve?q=red+hat+developer+hub&p=1&sort=cve_publicDate+desc,allTitle+desc&rows=10&documentKind=Cve[Red Hat Security Updates].
 
-// For 1.6.1, see link:https://access.redhat.com/errata/RHSA-2025:????[Red Hat Security Advisory RHSA-2025:????].
+For 1.6.2, see link:https://access.redhat.com/errata/RHSA-2025:9966[Red Hat Security Advisory RHSA-2025:9966].
 
-For 1.6.0, see link:https://access.redhat.com/errata/RHSA-2025:7626[Red Hat Security Advisory RHSA-2025:7626].
+For 1.6.0 and 1.6.1, see link:https://access.redhat.com/errata/RHSA-2025:7626[Red Hat Security Advisory RHSA-2025:7626].