Update VPA defaults to 1.5.1 in the vpa-release-1.5 branch

Author: adrianmoisey

vertical-pod-autoscaler/common/version.go

@@ -21,7 +21,7 @@ package common
 var gitCommit = ""
 
 // versionCore is the version of VPA.
-const versionCore = "1.5.0"
+const versionCore = "1.5.1"
 
 // VerticalPodAutoscalerVersion returns the version of the VPA.
 func VerticalPodAutoscalerVersion() string {