[misc] cleanup in wb_dims code and add curl to gha

[JanMarvin]

No description provided.

[JanMarvin]

Apparently rcmdcheck::rcmdcheck() is unable to locate curl if not listed in DESCRIPTION. The only way around this (that I can think of right now) without explicitly depending on curl, would be to install curl from within the helper, but I rather like testthat to fix their ... package.

My solution with dns_lookup() is slower than curl (if curl is available), but not overbearingly slow (~3ms with curl and ~28ms with base R dns_lookup()).

[olivroy]

Use can specify a Config/Needs/check: curl in DESCRIPTION I think

[JanMarvin]

Thanks, I didn’t know that!