package doesn't pull latest image when the image already exists

[hemz10]

Overview

on running kurtosis polkadot package when the image is already present, it doesn't pull or check for latest image

Expected Behavior

on every run it should check for latest image and pull latest image if found

Actual Behavior

It doesn't pull latest image

[shanithkk]

@hemz10 please add --image-download always in command, so it will pull the image everytime

[hemz10]

Hi @shanithkk can we update the readme to include this command always so that anyone using the package will not be mislead to always use the old image and also to reduce the steps involved by removing the old image manually.