Storybook is not updated in preview environment

When we push new code to a PR annotated with a tag `preview`, the image to be used in the preview environment is correctly built, but it is not pulled into the pod, therefore, if we open the preview environment, we don't see any changes.

The current workaround is to delete the old pod and expect the new one to be up and running.

To solve the issue, we we can use the same approach implemented in the Github Actions custom image runner, to annotate the deployment with a random value to force the roll out.