Version 0.5.1

Patch release, mostly to allow Astropy 6.x.

What's Changed

Dependency Changes

• Bump some dependency versions by @teutoburg in #72

Documentation Improvements

• Update versionchanged banner in docs by @teutoburg in #70

Other Changes

• Update workflow files by @teutoburg in #71

Full Changelog: v0.5.0...v0.5.1