OpenTelemetry Plugin Enhancements

[ayushiahjolia]

(Post-preview launch)

1. W3C Traceparent Extraction Support

• Add a TraceparentContextExtractor that parses standard W3C traceparent headers, enabling OTel trace continuity for customers not using X-Ray propagation.

2. No-Arg OTel Plugin Constructor

• Add a zero-argument constructor to OpenTelemetryDurablePlugin that auto-configures OTLP export to localhost:4317 with sensible defaults, reducing setup boilerplate for ADOT Lambda Layer users.