Standardize access to metrics and healthcheck
In some apps, the metrics and healthcheck are public:

- https://datasets-server.huggingface.co/admin/metrics
- https://datasets-server.huggingface.co/sse/metrics
- https://datasets-server.huggingface.co/sse/healthcheck
- https://datasets-server.huggingface.co/healthcheck
- On others, it’s forbidden or not found:

- https://datasets-server.huggingface.co/metrics
- https://datasets-server.huggingface.co/filter/metrics 

As @severo suggests, it should be coherent among all the services. (Do we want the metrics to be public, or not?)

Standardize access to metrics and healthcheck: In some apps, the metrics and healthcheck are public:

- https://datasets-server.huggingface.co/admin/metrics
- https://datasets-server.huggingface.co/sse/metrics
- https://datasets-server.huggingface.co/sse/healthcheck
- https://datasets-server.huggingface.co/healthcheck
- On others, it’s forbidden or not found:

- https://datasets-server.huggingface.co/metrics
- https://datasets-server.huggingface.co/filter/metrics 

As @severo suggests, it should be coherent among all the services. (Do we want the metrics to be public, or not?)
