This will ease scheduling of new add-forge-now requests, on:
- staging: this will list a subset of disabled origins once
- production: this will register recurring tasks (full, incremental if any) to list that
new forge
So, the following would be enough to list appropriately in staging/production:
```
swh scheduler add-forge-now \
( --production | --staging \ # to list only enabled | disabled origins )
register-lister \
gitea \
url=https://git.afpy.org/api/v1/
```
Related to https://gitlab.softwareheritage.org/infra/sysadm-environment/-/issues/4674