www/gohugo: Update to 0.153.3

ChangeLog: https://github.com/gohugoio/hugo/releases/tag/v0.153.3

• build(deps): bump github.com/bep/imagemeta from 0.12.0 to 0.12.1
• Fix error with _content.gotmpl file with index.md siblings

ChangeLog: https://github.com/gohugoio/hugo/releases/tag/v0.153.4

Set cascade target to the content matrix if not set in the cascade itself.

Approved by: doceng@ (implicit)