What's Changed
* Bump actions/checkout from 3 to 4 by dependabot in https://github.com/axiom-data-science/ocean-model-skill-assessor/pull/60
* Improved index handling by kthyng in https://github.com/axiom-data-science/ocean-model-skill-assessor/pull/61
**Full Changelog**: https://github.com/axiom-data-science/ocean-model-skill-assessor/compare/v0.8.0...v0.9.0