Migrate the remaining modules to use the scheduler's remote api:
- [x] swh-lister
- [x] swh-deposit (rDDEP7e535ab1c196fdeab8722ef610ca1d02ceadbc58)
- [ ] swh-vault (D317 pended, was accepted but got rebased, amended, now again pending for review)
- [x] scheduler's own utilities
Impacts:
- swh-site's defaults.yaml configuration