Add trailing space checker

[simonbeaudoin0935]

Just like this template gives a nice starting point for some sanity checks (email, etc) it would be nice to add a a templated checker that make sure no trailing whitespaces are trying to be commited

[github-actions]

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[github-actions]

This issue has been marked as stale due to 60 days of inactivity. To prevent automatic closure in 10 days, remove the stale label or add a comment. You can reopen a closed issue at any time.