code：

import asyncio
import boxlite

async def main():

async with boxlite.SimpleBox(image="ghcr.io/boxlite-ai/boxlite-skillbox:0.1.0") as box:
    result = await box.exec("python", "--version")
    print(result.stdout)

asyncio.run(main())

error：
File "/python3.10/site-packages/boxlite/simplebox.py", line 125, in aenter
await self._box.aenter()
RuntimeError: storage error: Failed to pull image 'debian:bookworm-slim' after trying 1 registry:

• docker.io/library/debian:bookworm-slim: storage error: failed to pull manifest: error sending request for url (https://index.docker.io/v2/library/debian/manifests/bookworm-slim)

do request url：https://index.docker.io/v2/library/debian/manifests/bookworm-slim
response ：
{"errors":[{"code":"UNAUTHORIZED","message":"authentication required","detail":[{"Type":"repository","Class":"","Name":"library/debian","Action":"pull"}]}]}

I've tried all the example‘s image name, and the error message is the same.When using Docker services to export rootfs for reading, a missing file system error is reported.

Could you please provide the methods to change the image mirror source?