release: 0.4.3

## Bump
- [ ] Major
- [ ] Minor
- [ ] Beta
- [x] Patch
- [ ] Skip

## Changelog

### Fixed
- `dq:dimension` lookup now uses the canonical Cognite vocabulary namespace (`http://purl.org/cognite/cdf_dq/DataQuality/`) so dimensions populate in validation records when rulesets use the correct prefix
- Consolidated dimension lookup into shared `_dimension_lookup.py` across instance, sync-cursor, partitioned, and instance-validation handlers
- SPARQL `dq:dimension` annotations on parent NodeShapes via BNode parent walk-up

### Added
- `docs/usage/dimensions.md` guide for annotating SHACL rules with `dq:dimension`
