fix: typo in tasty module

[bradsherman]

I noticed this while trying to run neotest haskell in a stack project with tasty tests. Once I fixed this typo, I was able to do things like lua require('neotest').run.run() and have the test run. Without this change, it would fail with an error saying Cannot run tests for configured build tools: stack.

[github-actions[bot]]

Review Checklist

Does this PR follow the Contribution Guidelines? Following is a partial checklist:

Proper conventional commit scoping:

• For example, fix(lsp): some lsp-related bugfix

• [ ] Pull request title has the appropriate conventional commit prefix.

If applicable:

• [ ] Tested
  • [ ] Tests have been added.
  • [ ] Tested manually (Steps to reproduce in PR description).
• [ ] Updated documentation.
• [ ] Updated CHANGELOG.md

[mrcjkb]

@all-contributors please add @bradsherman for code

[allcontributors[bot]]

@mrcjkb

I've put up a pull request to add @bradsherman! :tada:

[mrcjkb]

I'm out right now, but I'll push a new tag tomorrow.