Enhancement: Allow configuring after_exception for OpenTelemetryPlugin

[vikigenius]

Summary

allow configuring the after_exception handler for the otel plugin so that it can be added to the application level after_exception handler.

Basic Example

Add this field to the config class

after_exception: list[Callable[[Exception, Scope], Awaitable[None]]] = field(default_factory=list)

The plugin can do

app_config.after_exception.extend(self.config.after_exception)

Drawbacks and Impact

Allows doing things like recording exception on the current span

Unresolved questions

None