Support Extraction of .tar.xz Compressed Artifacts

## Summary Asphalt recently broke on Rokit with the error: > **failed to extract artifact: unknown format** This issue surfaced after Asphalt switched its artifact compression from `.zip` to `.tar.xz` for better compression efficiency. ## Details - The extracted files now use the `.tar.xz` format, which is not currently supported. - The error message suggests the extraction process does not recognize this format. - There are also some additional files (circled in red in the attached images) that might be contributing to the problem, but the primary cause is likely the unsupported `.tar.xz` format. ## Suggested Solution Please add support for extracting `.tar.xz` compressed files to ensure compatibility with Asphalt's new artifact format. This would resolve the extraction error and restore functionality on Rokit. ### References <img width="1033" height="666" alt="Image" src="https://github.com/user-attachments/assets/88572b63-feba-43d6-a4bc-516091ea9e1c" /> <img width="1160" height="750" alt="Image" src="https://github.com/user-attachments/assets/70594bdc-d9d1-4133-a91a-99ee26674c03" /> --- Let me know if more details or logs are needed! i used ai to make this issue look sexy