CI: Fix checkpatch

[arnopo]

The CI does not consider "check" reported by checkpatch. This commit fixes it by:

• rebasing check_compliance.py compliance.yml to integrate Zephyr updates,
• add detection of the "check" in the report.

An exemple of the result is available here: https://github.com/arnopo/open-amp/pull/25

[danmilea]

Thanks for the update @arnopo . Good to merge.