[11.x] apply our new Pint rule to the /tests directory

[browner12]

I originally omitted these files to keep the PR smaller, but adding back now for consistent styling throughout repo. these are purely indentation whitespace changes.

the bad-syntax-strategy.php file is not valid PHP so we need to omit it, or it throws a Pint error.

[browner12]

since this is a large PR that mostly contains whitespace changes, you can toggle the hiding the whitespace in the diff viewer to confirm only the behavior changes.

[AndrewMast]

I really like this push to include the styling rules into the repo, especially since it means we can use it ourselves when making pull requests or on our own projects. Maybe once we migrate these rules, we can add them to the base project laravel/laravel.

_{^{I didn't realize we could toggle whitespace in the diff viewer, thanks for that haha.}}