boatswain 0.3.0 -> 0.4.0 https://repology.org/project/boatswain/versions
attrpath: boatswain
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There might already be an open PR for this update:
- boatswain: 0.3.0 → 0.4.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/280349"