[Docs] Created changelog entry for 3.14.1.

Author: gmarciani

CHANGELOG.md

@@ -3,15 +3,14 @@ aws-parallelcluster-cookbook CHANGELOG
 
 This file is used to list changes made in each version of the AWS ParallelCluster cookbook.
 
-3.15.0
+3.14.1
 ------
 
 **CHANGES**
 - Add chef attribute `cluster/in_place_update_on_fleet_enabled` to disable in-place updates on compute and login nodes
    and achieve better performance at scale. 
 - Load kernel module `drm_client_lib` before installation of NVIDIA driver, if available on the kernel.
 
-
 3.14.0
 ------