fix(cli): Fix for unknown docling version when docling meta-package is not present (#3472)

* Bug Fix: Fix for docling version printed as unknown

Signed-off-by: Rintu Reji <Rintu.Reji@ibm.com>

* Bug Fix: Fix for docling version printed as unknown

Signed-off-by: Rintu Reji <Rintu.Reji@ibm.com>

---------

Signed-off-by: Rintu Reji <Rintu.Reji@ibm.com>
Co-authored-by: Rintu Reji <Rintu.Reji@ibm.com>