release: 0.2.1

## Bump

- [x] Patch
- [ ] Minor
- [ ] Major

## Changelog

### Fixed

- `KeyError: 'shacl_file_external_id'` in the orchestrator when `deploy_validation_pipeline`
  runs in DataProduct/RuleSet mode. The partition base config now uses `.get()` and forwards
  `ruleset_references` to partitioned workers so SHACL is loaded from the RuleSet API correctly.
