fix: add check-labels workflow to CI jobs

[diogomatsubara]

To easy the generation of changelogs we're enforcing labels on PRs. In eclipse-zenoh/ci#128 a new re-usable workflow was added to check and this PR enables the check.

[Mallets]

@diogomatsubara is this PR still alive?

[diogomatsubara]

@Mallets yes, still needed. I left in draft for now because we need some operational things to happen before we can start enforcing the check-labels check. By default, people that makes PR from forked branches can't edit the labels for their own PRs. The solution for this is to give those contributors triage permissions on the eclipse-zenoh org. This is done, unfortunately manually, via the Eclipse PMI interface and only Eclipse committers can add new people to the contributors list. Those contributors need to have an eclipse account, signed the ECA and have added their github ID to the eclipse account settings. The instructions to add those contributors to the Eclipse PMI can be found here: https://www.eclipse.org/projects/handbook/#pmi-contributors.

I'll ping you with a list of emails to add to the PMI.