Switched to better network/disk/cpu c6a.large with just 2x price

[sparshev]

vs2022 showed that build running for > 5h and by simple switching to more performant c6a.large we can get up to 5x boost for 2x price, so the end price could be ~$0.17 (1h) per build instead of ~$0.3 (5h).

Motivation and Context

Money & time

How Has This Been Tested?

Manually

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have signed the Adobe Open Source CLA.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ x I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.