[Feature Request]: Add extensibility to OpenTelemetry tracing

[simaoribeiro]

Is your request related to a problem you have?

The users of the framework may want to include additional attributes in the tracing spans being created on message produce and consume, e.g.: message headers.

Describe the solution you'd like

Add an extensibility option when configuring OpenTelemetry (AddOpenTelemetry()) to include additional attributes

Are you able to help bring it to life and contribute with a Pull Request?

Yes

[AlexeyRaga]

It'd be great if it'd be possible to "automagically" add message type, too ;)