Enhance LFS file pulling with token fallback mechanism

- Implemented a primary attempt to pull LFS files using GIT_PRIVATE_TOKEN.
- Added a fallback mechanism to use GITHUB_TOKEN if the initial attempt fails.
- Configured git to replace SSH and HTTPS URLs with token-based authentication for the fallback.
- Improved error handling to log specific failure messages for both token attempts.

This change ensures more robust handling of LFS file retrieval in various authentication scenarios.

Author: frostebite