Changelog:
https://github.com/psb1558/Junicode-font/releases/tag/v2.204
In addition to the updated font itself, new version includes a TeX
style for use with LuaLaTeX or XeLaTeX. Accordingly, the derivation is
updated to expose it under the 'tex' output, and tests are added to
ensure it works properly with texlive infrastructure.
