Update pull_request_template.md

[zlonast]

Template B: This PR does not modify behaviour or interface

E.g. the PR only touches documentation or tests, does refactorings, etc.

Include the following checklist in your PR:

• Patches conform to the coding conventions.
• Is this a PR that fixes CI? If so, it will need to be backported to older cabal release branches (ask maintainers for directions).

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-05-20 20:58 UTC · Rule: default
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-05-20 21:09 UTC · at 5f2041101c11f52c7e5b6f50d2a8cef50f0238be · merge

This pull request spent 11 minutes 25 seconds in the queue, including 6 seconds running CI.

Required conditions to merge

• #approved-reviews-by >= 2 [🛡 GitHub branch protection]
  • Update pull_request_template.md #11839
• #changes-requested-reviews-by = 0 [🛡 GitHub branch protection]
  • Update pull_request_template.md #11839
• #review-threads-unresolved = 0 [🛡 GitHub branch protection]
  • Update pull_request_template.md #11839
• any of [🛡 GitHub branch protection]:
  • check-success = Doctest Cabal
  • check-neutral = Doctest Cabal
  • check-skipped = Doctest Cabal
• any of [🛡 GitHub branch protection]:
  • check-success = Meta checks
  • check-neutral = Meta checks
  • check-skipped = Meta checks
• any of [🛡 GitHub branch protection]:
  • check-success = docs/readthedocs.org:cabal
  • check-neutral = docs/readthedocs.org:cabal
  • check-skipped = docs/readthedocs.org:cabal
• any of [🛡 GitHub branch protection]:
  • check-success = Validate post job
  • check-neutral = Validate post job
  • check-skipped = Validate post job
• any of [🛡 GitHub branch protection]:
  • check-success = fourmolu
  • check-neutral = fourmolu
  • check-skipped = fourmolu
• any of [🛡 GitHub branch protection]:
  • check-success = hlint
  • check-neutral = hlint
  • check-skipped = hlint
• any of [🛡 GitHub branch protection]:
  • check-success = Bootstrap post job
  • check-neutral = Bootstrap post job
  • check-skipped = Bootstrap post job
• any of [🛡 GitHub branch protection]:
  • check-success = whitespace
  • check-neutral = whitespace
  • check-skipped = whitespace
• any of [🛡 GitHub branch protection]:
  • check-success = Check sdist post job
  • check-neutral = Check sdist post job
  • check-skipped = Check sdist post job
• any of [🛡 GitHub branch protection]:
  • check-success = Changelogs
  • check-neutral = Changelogs
  • check-skipped = Changelogs