v0.17.4

What's Changed

• ✨ feat(distance): Parallax as a distance measure by @nstarman in #333
• ✨ feat(vecs): converters from fourvector by @nstarman in #327
• build(deps): bump the actions group with 2 updates by @dependabot in #328
• 🚚 resource(vecs): rename file to register_vconvert by @nstarman in #329
• 🐛 fix(ops): spatial translation on a 4-pos and a 3-vel by @nstarman in #330
• 🎨 style: cleanup of quantities and docs by @nstarman in #331
• 🚚 resource(vecs): move private namespaces by @nstarman in #332

Full Changelog: v0.17.3...v0.17.4