Add support for OpenTelemetry's declarative configuration

[mhalbritter]

https://opentelemetry.io/blog/2026/stable-declarative-config/

We should think about if we can (and want) to support that.

[iamankushpandit]

I would like to contribute towards this. Let me know what I can do.

[mhalbritter]

Hey @iamankushpandit , thanks for the offer, but we first need to decide what to do here.