Unxt

What's Changed
* fix: promotion in Distance by nstarman in https://github.com/GalacticDynamics/unxt/pull/88


**Full Changelog**: https://github.com/GalacticDynamics/unxt/compare/v0.8...v0.8.1

What's Changed
* Refactor unitsystems by nstarman in https://github.com/GalacticDynamics/unxt/pull/83
* Distance class by nstarman in https://github.com/GalacticDynamics/unxt/pull/84
* fix: distance constructor by nstarman in https://github.com/GalacticDynamics/unxt/pull/85
* feat: add parallax distance constructor by nstarman in https://github.com/GalacticDynamics/unxt/pull/86


**Full Changelog**: https://github.com/GalacticDynamics/unxt/compare/v0.6.3...v0.8

What's Changed
* Refactor unitsystems by nstarman in https://github.com/GalacticDynamics/unxt/pull/83


**Full Changelog**: https://github.com/GalacticDynamics/unxt/compare/v0.6.3...v0.7

What's Changed
* docs: zenodo badge by nstarman in https://github.com/GalacticDynamics/unxt/pull/78
* chore: update pre-commit hooks by pre-commit-ci in https://github.com/GalacticDynamics/unxt/pull/79
* refactor: move no-op class_getitem to UncheckedQuantity by nstarman in https://github.com/GalacticDynamics/unxt/pull/80
* feat: argnums arg to grad by nstarman in https://github.com/GalacticDynamics/unxt/pull/81
* feat: NAMED_UNIT_SYSTEMS registry by nstarman in https://github.com/GalacticDynamics/unxt/pull/82


**Full Changelog**: https://github.com/GalacticDynamics/unxt/compare/v0.6.2...v0.6.3

This release is to trigger Zenodo

**Full Changelog**: https://github.com/GalacticDynamics/unxt/compare/v0.6.1...v0.6.2

What's Changed
* test: unitsystems by nstarman in https://github.com/GalacticDynamics/unxt/pull/72
* feat: support argnums jacfwd by nstarman in https://github.com/GalacticDynamics/unxt/pull/73
* chore: update pre-commit hooks by pre-commit-ci in https://github.com/GalacticDynamics/unxt/pull/74
* feat: mod by nstarman in https://github.com/GalacticDynamics/unxt/pull/75
* register inf as special case for equality checks by nstarman in https://github.com/GalacticDynamics/unxt/pull/76
* test: add for allclose by nstarman in https://github.com/GalacticDynamics/unxt/pull/77


**Full Changelog**: https://github.com/GalacticDynamics/unxt/compare/v0.6...v0.6.1