[charts] fix chart version

Author: kayrus

charts/cinder-csi-plugin/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: v1.31.3
 description: Cinder CSI Chart for OpenStack
 name: openstack-cinder-csi
-version: 2.31.6
+version: 2.31.7
 home: https://github.com/kubernetes/cloud-provider-openstack
 icon: https://github.com/kubernetes/kubernetes/blob/master/logo/logo.png
 maintainers: