fix(test_optimizer): order files on pregen to guarantee consistency

[renancaraujo]

Description

fix: order files on pregen to guarantee consistency

This is currently breaking the main build. See here.

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

[alestiago]

I've been thinking about this. I don't think we should be sorting at all. A stable sort algorithm would require O(nlogn). This might have a significant performance cost for large projects with many test files.

In reality, the order of this inputs doesn't matter. Hence we should not be testing the order, and instead we should only test that the element is contained at least once in the list.