Release 4.1.0

[hildjj]

Note: this is hypothetical, and assumes that the changes contemplated in #552 have been made.

• [x] Fix #552
• [x] Fix #514
• [x] Audit CHANGELOG.md, ensuring all changes since last release are reflected
• [x] Update release date in CHANGELOG.md
• [x] Update dependencies
• [x] npm pack --dry-run and look for extra files that got included by mistake
• [x] Ensure on main branch
• [x] npm version minor (updates lib/version.js lib/parser.js docs/index.html)
• [x] npm run build
• [x] git status and ensure we are clean
• [x] npm test:all
• [x] Other local tests
• [x] git push upstream main --follow-tags
• [x] Wait for CI run to complete
• [x] gh release create Create GH release notification, copy in latest portion of CHANGELOG.md. This publishes docs and does the release.
• [x] Update CHANGELOG.md with skeleton for next release