Allow zarf dev find-images update zarf.yaml with discovered images

[a1994sc]

Is your feature request related to a problem? Please describe.

When running zarf dev find-images it only output to the console, it does not update the zarf.yaml file.

To not break the current functionality it would be nice to have a flag like -u/--update-zarf-manifest to have the update the manifest for us.

Describe the solution you'd like

• Given an update to the zarf manifests/zarf charts
• When the -u/--update-zarf-manifest is provided
• Then the zarf.yaml file .components[].images array is updated.

Additional context

This is mainly aimed at creating CI/CD around zarf and renovate, so when a helm package is updated via Renovate then zarf will update the manifest and other parts of the pipeline will push those changes.