S3 Backup: Use same python version as API

**Describe the task**
It uses an older version.

**Acceptance Criteria**
- [ ] It uses the same python version as API

**Additional context**
- Add any other context about the task here.
- Or here

Start by locating the S3 Backup entry point and the API's Python version declaration or dependency configuration, then compare how each version is selected. Update the backup configuration to match the API and verify the relevant backup and API checks; done means both use the same Python version.

Written by the indexing model from the issue text.