this is how I figured out to make it work now
- name: Add node repo with key from URL
ansible.builtin.deb822_repository:
name: node
uris: https://deb.nodesource.com/node_{{ node_major }}.x
suites: '{{ ansible_distribution_release }}'
components: main
architectures: amd64
signed_by: https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key
trusted: true
register: node_repo
where …
trusted: true
brings the solution.
actually as I am writing this I believe there is some sort of mixup trusted: true
solves an error equivalent to: ""signatures couldn't be verified""