Update changelog for 2.10.2

Author: demartinofra

CHANGELOG.md

@@ -6,8 +6,14 @@ This file is used to list changes made in each version of the AWS ParallelCluste
 2.10.2
 -----
 
+**ENHANCEMENTS**
+- Improve configuration procedure for the Munge service.
+
 **CHANGES**
-- There were no notable changes for this version.
+- Update Python version used in ParallelCluster virtualenvs from version 3.6.9 to version 3.6.13.
+
+**BUG FIXES**
+- Use non interactive `apt update` command when building custom Ubuntu AMIs.
 
 2.10.1
 ------