Adds a release note

Author: jovial

releasenotes/notes/bump-rocky8-snapshots-2023-09-29-e115427edd3334c7.yaml

@@ -0,0 +1,7 @@
+---
+security:
+  - |
+    The Rocky 8 minor version has been bumped to 8.8 and new snapshots have
+    been created to include fixes for Zenbleed (CVE-2023-20593), Downfall
+    (CVE-2022-40982) and Inception (CVE-2023-20569). It is recommended that you
+    update your OS packages and reboot into the kernel as soon as possible.