[8.15] Bump up apm-data to v1.8.1 (backport #13614)

[mergify]

Motivation/summary

host.ip resource attribute was not processed for OTel events which led to missing of this crucial field in the UI.

Checklist

• Update CHANGELOG.asciidoc
  - [ ] Documentation has been updated

How to test these changes

1. Create a setup with opentelemetry-collector. Use otlphttp exporter to send data to APM-Server. For receiver, you can use hostmetricsreciever to collect host stats.
2. Notice that docs indexed in Elasticsearch have the field host.ip set (note if the field labels.host_ip is set then we are not handling it correctly as all unhandled fields are added as a label).

Related issues

NA

---

This is an automatic backport of pull request #13614 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of f56767d has failed:

On branch mergify/bp/8.15/pr-13614
Your branch is up to date with 'origin/8.15'.

You are currently cherry-picking commit f56767d42.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   NOTICE.txt
	modified:   changelogs/8.15.asciidoc

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go.mod
	both modified:   go.sum

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[mergify]

This pull request is now in conflicts. Could you fix it @mergify[bot]? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/8.15/pr-13614 upstream/mergify/bp/8.15/pr-13614
git merge upstream/8.15
git push upstream mergify/bp/8.15/pr-13614

[lahsivjar]

@Mergifyio refresh

[mergify]

refresh

✅ Pull request refreshed