bump version 3.2.0

CHANGELOG.md

 
+3.2.0 / 2021-03-23
+==================
+
+  * allow keepalived master to take over
+  * fix keepalived priority
+
 3.1.7 / 2021-03-23
 ==================
 

metadata.json

 {
   "name": "maxadamo-galera_proxysql",
-  "version": "3.1.7",
+  "version": "3.2.0",
   "author": "maxadamo",
   "summary": "Galera and ProxySQL Cluster",
   "license": "GPL-3.0",