grade-school: trigger test rerun

[senekor]

It was reported that several (top) community solutions for this exercise do not pass the latests tests. Changing the test file slightly (adding some semicolonts) should trigger a rerun and correctly mark the community solutions as failing the latest tests.

forum post:
https://forum.exercism.org/t/grade-school-challenge-not-up-to-date/26896/2

[github-actions]

This PR touches files which potentially affect the outcome of the tests of an exercise. This will cause all students' solutions to affected exercises to be re-tested.

If this PR does not affect the result of the test (or, for example, adds an edge case that is not worth rerunning all tests for), please add the following to the merge-commit message which will stops student's tests from re-running. Please copy-paste to avoid typos.

[no important files changed]

For more information, refer to the documentation. If you are unsure whether to add the message or not, please ping @exercism/maintainers-admin in a comment. Thank you!

[ellnix]

I'm sorry it took so long, I've been really busy these past few weeks

[IsaacG]

@ellnix No worries. I don't have merge permissions here. Do you?

[senekor]

@ellnix No worries! Thanks for the reviews.

@IsaacG Your review didn't "count", so I couldn't merge before getting the approval from ellnix. IIRC tracks with 2+ maintainers require a review from a track maintainer, instead of a "guardian".