Add metrics endpoint

[Azuka]

Description

Is it possible to add the metrics endpoint to the OpenAPI for generation? I'm moving an API from typescript to go, and it seems to be the only endpoint missing.

Steps to reproduce

Expected Behavior

Actual Behavior

Metadata

Typesense Version:

OS:

[aliml92]

Take a look at this github.com/aliml92/go-typesense.