[Bug] API backfillips call fail

[akelge]

Is this a support request?

• [X] This is not a support request

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

/api/v1/node/backfillips fails, I think that the route is not matched, so it tries to retrieve info on node with id backfillips, failing, of course

Expected Behavior

A call to /api/v1/node/backfillips should call the related function in headscale

Steps To Reproduce

Do an API call to /api/v1/node/backfillips and inspect the response

Environment

- OS: docker
- Headscale version: v0.23.0-alpha12

Runtime environment

• [ ] Headscale is behind a (reverse) proxy
• [X] Headscale runs in a container

Anything else?

No response