[Request]: Cross-volume single-file mounts should log informational message to the user.

### Feature or enhancement request details

apple/containerization#487 adds support for single file mounts. Once the containerization dependency is updated in container, we can test the capability for (rw, ro) x (same volume, cross volume).

We need to add a warning message for cross-volume rw mounts that the updates to the mounted file are not reflected on the host (the solution requires hard linking a temporary file to the host file, to ensure that other files in the same directory are not mounted into the container).

### Code of Conduct

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