v0.15.7

What's Changed

Minor bug fix for #163 plus some development-side tweaks.

• Update all actions to use checkout v4 by @Evertras in #161
• Update go setup actions by @Evertras in #162
• Nix flake for dev shell by @Evertras in #164
• Persist selected column when columns are regenerated. by @Evertras in #166

Full Changelog: v0.15.6...v0.15.7