A GitLab pipeline is usually triggered by a push to a git repository.
Is there a way to let GitLab trigger my pipeline by updates to a GitLab package registry instead?
Or maybe I can install a web hook that calls back some web service on updates to a package registry?

May company runs a GitLab instance version 16.9.

I inspected the GitLab doc https://docs.gitlab.com/, in particular

• https://docs.gitlab.com/ee/administration/system_hooks.html
• https://docs.gitlab.com/ee/integration/
• https://docs.gitlab.com/ee/user/project/integrations/webhook_events.html

but couldn’t find anything related.