while pushing kpack bulid image to harbor we are getting error that the iamge is already exit

[kvsuresh14]

what trigger really means is invalidate the last build, and run another one

kpack is always checking that the last build is valid, and if not, then it will run another build. running trigger makes the last build invalid and so kpack runs it again

Originally posted by @sampeinado in https://github.com/vmware-tanzu/kpack-cli/issues/74#issuecomment-694941678