github: update PR template

Author: AdamJ

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,9 +7,9 @@ Please include a summary of the change and which (if any) issue is fixed. List a
 
 Please check the boxes that apply before requesting review.
 
-- [ ] I ran the site locally (`npm run show`) and verified the changed pages
-- [ ] I ran the production build (`npm run css && npm run build`) and checked `docs/` output
-- [ ] I updated or copied vendor assets using the package.json copy scripts if required (`npm run copy-css|copy-js|copy-fa|copy-cas`)
+- [ ] I ran the site locally (`pnpm show`) and verified the changed pages
+- [ ] I ran the production build (`pnpm css && pnpm build`) and checked `docs/` output
+- [ ] I updated or copied vendor assets using the package.json copy scripts if required (`pnpm copy-css|copy-js|copy-fa|copy-cas`)
 - [ ] If this change depends on `caswow.library`, I documented whether it was linked with `npm link` or included in CI
 - [ ] I verified there are no uncaught exceptions in the browser console (common: dialog script in `base.njk`)
 - [ ] I added notes in this PR about any assumptions made (missing vendor files, local links, env variables)