[Docs] Fix entry for changelog 3.13.1.

Author: gmarciani

CHANGELOG.md

@@ -10,7 +10,7 @@ This file is used to list changes made in each version of the AWS ParallelCluste
 - Upgrade Slurm to version 24.05.8.
 
 **BUG FIXES**
-- Use `v2.1.0-patched.tar.gz` which pins backtrace version to v3.0.74
+- Use a patched version of efs-utils v2.1.0 which pins backtrace version to v3.0.74 to resolve build image failures.
 
 3.13.0
 ------