Function should_delete_file 

fn should_delete_file(
    is_in_manifest: bool,
    is_in_tmp_ref: bool,
    is_linger: bool,
    is_eligible_for_delete: bool,
    is_region_dropped: bool,
    _entry: &Entry,
    _unknown_file_may_linger_until: DateTime<Utc>,
) -> bool

Helper function to determine if a file should be deleted based on common logic shared between Parquet and Puffin file types.