www/gohugo: Update to 0.154.2

ChangeLog: https://github.com/gohugoio/hugo/releases/tag/v0.154.1

• Add WASM licensing information to README
• Fix partial decorator detection in partial with blocks with outer range break or continue

ChangeLog: https://github.com/gohugoio/hugo/releases/tag/v0.154.2

• Fix alpha/fuzzy border issue with new webp decoder for images with with transparent background

Approved by: doceng@ (implicit)