3.13.7 release notes: credit @sysupbda

for their non-trivial non-code contribution.

release-notes/3.13.7.md

@@ -38,6 +38,8 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
    (that is, segment files that do not have a corresponding index file) or index files without a corresponding
    segment file.
 
+   Kudos to @sysupbda for providing detailed reproduction steps and verifying the fix in the affected environment.
+
    GitHub issue: [#12073](https://github.com/rabbitmq/rabbitmq-server/pull/12073)
 
  * Config file [peer discovery](https://www.rabbitmq.com/docs/cluster-formation) now logs warnings for certain common user mistakes.