fix: backport lineage fix to datadog-lambda-java

[astuyve]

What does this PR do?

Adopts a patch suggested by @GitMarco, with a slightly renamed method.

Motivation

Backporting a fix to this library for the new Lineage parameter in the xray trace ID
Fixes #89

Testing Guidelines

Additional Notes

Types of changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

Checklist

• This PR's description is comprehensive
• This PR contains breaking changes that are documented in the description
• This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• This PR impacts documentation, and it has been updated (or a ticket has been logged)
• This PR's changes are covered by the automated tests
• This PR collects user input/sensitive content into Datadog

[hghotra]

LGTM 👍🏼