Release hubValidations 0.8.0

[zkamvar]

Prepare for release

https://hubverse-org.github.io/hubDevs/articles/release-checklists.html#release-checklist

• [x] git pull
• [x] Check if any deprecation processes should be advanced, as described in Gradual deprecation
• [x] Polish NEWS
• [x] urlchecker::url_check()
• [x] devtools::build_readme()
• [x] devtools::check(remote = TRUE, manual = TRUE)
• [x] devtools::check_win_devel()
• [x] revdepcheck::revdep_check(num_workers = 4)
• [x] git push
• [ ] usethis::use_github_release()
• [ ] usethis::use_dev_version(push = TRUE)
• [ ] Share on social media