Release roxygen2 7.3.0

[hadley]

Prepare for release:

• git pull
• Check current CRAN check results
• Polish NEWS
• urlchecker::url_check()
• devtools::check(remote = TRUE, manual = TRUE)
• devtools::check_win_devel()
• revdepcheck::cloud_check()
  • Failure with dev roxygen2 ThinkR-open/attachment#107
  • Failure with dev roxygen2 ThinkR-open/checkhelper#86
  • Fix for dev roxygen2 hughjonesd/doctest#14
• Update cran-comments.md
• git push
• Draft blog post — https://github.com/tidyverse/tidyverse.org/compare/roxygen2-7.3.0
• Slack link to draft blog in #open-source-comms
• More careful ordering for @family tag #1563

Submit to CRAN:

• Wait until Jan 15
• usethis::use_version('minor')
• devtools::submit_cran()
• Approve email

Wait for CRAN...

• Accepted 🎉
• Finish & publish blog post
• Add link to blog post in pkgdown news menu
• usethis::use_github_release()
• usethis::use_dev_version(push = TRUE)
• Tweet