fix: get images on main (#164)

Add script to retrieve images referenced in kserve.

Refs #162

tools/get-images.sh

@@ -7,7 +7,6 @@ IMAGE_LIST=()
 # only scan kserve-controller to avoid retrieving incorrect image from kserve-web-app
 # details are in https://github.com/canonical/bundle-kubeflow/issues/674
 IMAGE_LIST+=($(find charms/kserve-controller/ -type f -name metadata.yaml -exec yq '.resources | to_entries | .[] | .value | ."upstream-source"' {} \;))
-IMAGE_LIST+=($(grep image charms/kserve-controller/src/templates/serving_runtimes_manifests.yaml.j2 | awk '{print $2}' | sort --unique))
-IMAGE_LIST+=($(grep image charms/kserve-controller/src/templates/configmap_manifests.yaml.j2 | awk '{print $3}' | sort --unique | sed s/,//g | sed s/\"//g))
+IMAGE_LIST+=($(yq '.[]' ./charms/kserve-controller/src/default-custom-images.json  | sed 's/"//g'))
 printf "%s\n" "${IMAGE_LIST[@]}"