external_id doesn't work for import or list of identities

[philips]

Preflight checklist

• I could not find a solution in the existing issues, docs, nor discussions.
• I agree to follow this project's Code of Conduct.
• I have read and am following this repository's Contribution Guidelines.
• I have joined the Ory Community Slack.
• I am signed up to the Ory Security Patch Newsletter.

Ory Network Project

No response

Describe the bug

I am attempting to evaluate Ory for a project. However, external_id seems to be an unloved part of the API and non-existent in identity import and list identities

Reproducing the bug

$ cat identity.json 
{
  "schema_id": "preset://email",
  "traits": {
    "email": "brandon.external@example.com"
  },
  "external_id": "customer-12345"
}
$ ory import identities identity.json
$ curl --request GET   --header "Authorization: Bearer $ORY_PAT"   "https://$PROJECT_SLUG.projects.oryapis.com/admin/identities/by/external/customer-12345"
{"error":{"code":404,"status":"Not Found","request":"5d0bca5c-0f4d-989f-9bba-216d383fe4fd","message":"Unable to locate the resource"}}

Relevant log output

Relevant configuration

Version

v1.2.0

On which operating system are you observing this issue?

Linux

In which environment are you deploying?

Ory Network

Additional Context

No response