The `oc adm migrate icsp` command only generates the IDMS for first ICSP in the YAML file.

   4.15,4.16

    100%

The oc-mirror command generated an imageContentSourcePolicy.yaml file after mirroring the images which has below content:
~~~
---
apiVersion: operator.openshift.io/v1alpha1
kind: ImageContentSourcePolicy
metadata:
  name: generic-0
spec:
  repositoryDigestMirrors:
  - mirrors:
    - registry.dpateriy.lab.example.com:8443/ubi8
    source: registry.redhat.io/ubi8
---
apiVersion: operator.openshift.io/v1alpha1
kind: ImageContentSourcePolicy
metadata:
  name: release-0
spec:
  repositoryDigestMirrors:
  - mirrors:
    - registry.dpateriy.lab.example.com:8443/openshift/release
    source: quay.io/openshift-release-dev/ocp-v4.0-art-dev
  - mirrors:
    - registry.dpateriy.lab.example.com:8443/openshift/release-images
    source: quay.io/openshift-release-dev/ocp-release
~~~


When I tried running `oc adm migrate icsp` command to migrate, it only generated the IDMS for the first ICSP i.e., generic-0.
~~~
$ ./oc adm migrate icsp ./oc-mirror-workspace/results-1720542158/imageContentSourcePolicy.yaml --dest-dir .
wrote ImageDigestMirrorSet to imagedigestmirrorset_generic-0.1509966966034800745.yaml

$ cat imagedigestmirrorset_generic-0.1509966966034800745.yaml
apiVersion: config.openshift.io/v1
kind: ImageDigestMirrorSet
metadata:
    name: generic-0
spec:
    imageDigestMirrors:
        - mirrors:
            - registry.dpateriy.lab.example.com:8443/ubi8
          source: registry.redhat.io/ubi8
~~~

   It generated the IDMS for first ICSP, it does not check the complete file for other ICSPs.

    oc adm migrate icsp command should generate the IDMS for all the ICSPs defined in a single YAML file as the imageContentSourcePolicy.yaml is generated by oc-mirror itself.