BaggageSpanProcessor should use ExtendedSpanProcessor.onEnding() #1632
Description
Component(s)
processors
Is your feature request related to a problem? Please describe.
Because BaggageSpanProcessor runs onStart(), newly added included Baggage keys need to be manually added to the current Span.
Describe the solution you'd like
BaggageSpanProcessor should be modified to implement ExtendedSpanProcessor and included baggage keys should be added onEnding().
Describe alternatives you've considered
No response
Additional context
No response