Add support to the `Info` field in the body of query API responses

[rapphil]

Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like

Starting with Prometheus 2.54.0, the response body of query APIs will have a info field that is used to store potential query issues, that may or may not be a false positive. To maintain Prometheus compatibility, we should support to this field in cortex as well.

References

prometheus/prometheus#14327
prometheus/prometheus#14429

[SungJin1212]

@rapphil
Could you please assign me? (cc. @yeya24)