feat: add kafkajs instrumentation

[david-luna]

PR to add kafkajs instrumentation. Summary of additions

• instrument send& sendBatch methods of kafkajs producers

  • creating a spans if apply (topic not ignored by config)
  • propagating traceparent info into message headers

• instruments eachMessage of kafkajs consumers

  • creating a transaction if apply (topic not ignored by config)
  • setting the trace_id if traceparent present in message headers

• instruments eachBatch of kafkajs consumers

  • creating a transaction if apply (topic not ignored by config)
  • setting the transaction links if traceparent present in message headers

Closes: #2905

Checklist

• Implement code
• Add tests
• Update TypeScript typings
• Update documentation
• Add CHANGELOG.asciidoc entry
• Commit message follows commit guidelines

[trentm]

This is great. I am sorry for taking so long to review.

[david-luna]

/test tav kafkajs

[trentm]

A couple of nits.

[oleh-kravchuk]

@david-luna @trentm

I see that this MR is already at the final stage, isn't it?

Thanks for your efforts for shipping such a valuable changes.
We look forward to use native kafkajs instrumentation on our side ;-)

[david-luna]

@trentm I've also updated the test expectations for the latest changes in span names. Now tests are green :)

[david-luna]

/test tav kafkajs

[trentm]

Awesome. Nice work.