[Proxysql] fix versioning (#21)

Co-authored-by: Rainer 'rei' Schuth <rainer.schuth@digital-results-international.com>

Author: reixd

charts/proxysql/Chart.yaml

@@ -1,9 +1,9 @@
 ---
 apiVersion: v1
-appVersion: "2.5.6"
+appVersion: "2.7.1"
 description: ProxySQL Helm chart for Kubernetes
 name: proxysql
-version: 1.1.0
+version: 1.1.1
 home: https://www.proxysql.com/
 sources:
   - https://github.com/dysnix/charts