"Prepare release" template "Finish App translations" change

[pljones]

Currently, "Finish App translations" reads"

• [x] Finish App translations
  • [x] Review translation PRs according to release process checklist
  • [x] Wait for all PRs to be merged (missing translations will revert to English automatically).
  • [ ] Check for conflicting accelerator keys (see tools/checkkeys.pl)
  • [ ] Check for broken links

"Check for broken links" is a website check -- so it needs removing from the "Finish App translations".

Originally posted by @pljones in https://github.com/jamulussoftware/jamulus/issues/3255#issuecomment-2321897409