Update test result file name in GitHub Actions

[connortreacy]

What does this PR do?

Fixes an issue with actions, where the previous XML file path was trying to display XML files that aren't part of the test results.

Confirmed that the fix worked by running actions manually on my fork.

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline,
  Pull Request section?
• Was this discussed/approved via a Github issue? Please add a link
  to it if that's the case.
• Did you make sure to update the documentation with your changes?
• Did you write any new necessary tests?

Thanks for contributing 🎉!