[cluster-autoscaler-release-1.31]: prep version.go for 1.31.3

Author: jackfrancis

cluster-autoscaler/version/version.go

@@ -17,4 +17,4 @@ limitations under the License.
 package version
 
 // ClusterAutoscalerVersion contains version of CA.
-const ClusterAutoscalerVersion = "1.31.2"
+const ClusterAutoscalerVersion = "1.31.3"