message: Fix mergeback PR description
  Previously the quoted values weren't visible in the PR description.
diff: @@ -121,7 +121,8 @@ jobs:
  - [ ] Remove and re-add the "Update dependencies" label to the PR to trigger just this workflow.
  - [ ] Wait for the "Update dependencies" workflow to push a commit updating the dependencies.
  - [ ] Mark the PR as ready for review to trigger the full set of PR checks.
  - - [ ] Approve and merge the PR. Make sure `Create a merge commit` is selected rather than `Squash and merge` or `Rebase and merge`.
  + - [ ] Approve and merge the PR. When merging the PR, make sure "Create a merge commit" is
  + selected rather than "Squash and merge" or "Rebase and merge".
  EOF
  )
  