ci: remove check-docker-compose task

[kruskall]

Motivation/summary

docker compose is only used for system tests and we are automation to bump the version. This means there is nothing actionable on our end and it might cause CI to fail if the ES/Kibana docker image is not available.

This is currently the case for the 8.13.0 SNAPSHOT version.

Checklist

• Update CHANGELOG.asciidoc
• Update package changelog.yml (only if changes to apmpackage have been made)
• Documentation has been updated

For functional changes, consider:

• Is it observable through the addition of either logging or metrics?
• Is its use being published in telemetry to enable product improvement?
• Have system tests been added to avoid regression?

How to test these changes

Related issues

[lahsivjar]

LGTM!

[mergify]

This pull request is now in conflicts. Could you fix it @kruskall? 🙏
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 ci/drop-compose-check upstream/ci/drop-compose-check
git merge upstream/main
git push upstream ci/drop-compose-check

[mergify]

This pull request is now in conflicts. Could you fix it @kruskall? 🙏
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 ci/drop-compose-check upstream/ci/drop-compose-check
git merge upstream/main
git push upstream ci/drop-compose-check

[v1v]

run docs-build

[kruskall]

Superseded by #12637