Use distinct output for boolean logic

[jsoref]

Note: Fixes for the online documentation of the current Stack release (https://docs.haskellstack.org/en/stable/) should target the 'stable' branch, not the 'master' branch.

Please include the following checklist in your pull request:

• Any changes that could be relevant to users have been recorded in ChangeLog.md.
• The documentation has been updated, if necessary

Please also shortly describe how you tested your change. Bonus points for added tests!

1. I tried pulling in the latest master hoping everything would work: https://github.com/check-spelling/stack/runs/8276358068?check_suite_focus=true
   -- it didn't, apparently the value comparison logic didn't end up w/ the values we wanted
2. I tried a number of combinations... https://github.com/check-spelling/stack/actions
3. This combination did the right thing for forks w/o the secret: https://github.com/check-spelling/stack/runs/8277415398?check_suite_focus=true
4. Then I added the secret and got a run that appears to be properly waiting for a runner: https://github.com/check-spelling/stack/runs/8277460422?check_suite_focus=true

Requested labels: self-hosted, linux, ARM64
Job defined at: check-spelling/stack/.github/workflows/integration-tests.yml@refs/heads/master
Waiting for a runner to pick up this job...

I'll cancel it at some point...