feat: Propagate traceId to the Android SDK

[bitsandfoxes]

Java errors share the same trace ID as the events coming from the C# layer. Native errors lack the trace context.

[github-actions]

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🚫	Please consider adding a changelog entry for the next release.

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- Propagate `traceId` to the Android SDK ([#1997](https://github.com/getsentry/sentry-unity/pull/1997))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

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