Allow primitive OTEL delta ingestion in Cortex

[yeya24]

Is your feature request related to a problem? Please describe.
Prometheus recently added experimental support for ingesting native OTEL delta values in prometheus/prometheus#16360.

Also there is an ongoing proposal prometheus/proposals#48.

Cortex can start enabling this feature based on the awesome work from prometheus/prometheus#16360 and we can play with it as an experimental feature.

Describe the solution you'd like
I expect the feature to be enabled from a per tenant limit config.