Merge pull request #8866 from jenkins-x/pr-a1b55118-2789-4d05-a262-24aefb103c60

chore(deps): upgrade jenkins-x-plugins/jx-promote to version 0.6.28

Author: jenkins-x-bot

pkg/plugins/versions.go

@@ -31,7 +31,7 @@ const (
 	ProjectVersion = "0.2.78"
 
 	// PromoteVersion the version of the jx promote plugin
-	PromoteVersion = "0.6.27"
+	PromoteVersion = "0.6.28"
 
 	// SecretVersion the version of the jx secret plugin
 	SecretVersion = "0.4.16"