Upgrade version to v1.28 (#382)

Author: vedantjoshi84

pkg/util/constants.go

@@ -306,7 +306,7 @@ func init() {
 
 // These are the constants needed for everything version related
 const (
-	Version         string = "pf9ctl version: v1.27"
+	Version         string = "pf9ctl version: v1.28"
 	AWSBucketName   string = "pmkft-assets"
 	AWSBucketKey    string = "pf9ctl"
 	AWSBucketRegion string = "us-west-1"