Explore alternatives to `mount` for Docker compatibility in importers

Currently, some hashr importers rely on directly mounting ISO files within Docker containers (e.g. windows or iso importer). This approach is not generally supported by Docker due to security restrictions. Explore and implement alternatives to eliminate the need for the `--privileged` flag. (see #61)

### Considerations:

* Tools: Investigate libraries or tools like 7z, xorriso, or others that can extract or access contents of ISO files without requiring a direct mount.
* Performance Impact: Evaluate any trade-offs in terms of performance or resource usage between the mounting approach and potential alternatives.
* Importer Scope: Identify the specific importers within hashr that rely on mount and will need to be refactored.