Allow the cta-admin tool to modify the physical library model and type

Problem

At the moment it's not possible to modify the model and type of a physical library.

This should be allowed.

Example from https://gitlab.cern.ch/cta/operations/-/issues/1550:

pcvlado ~ > cta-admin pl ls | egrep 'model|\+'
       name  manufacturer    model type                     gui url                      webcam url  location physical cartridge slots available cartridge slots physical drive slots  c.user                  c.host           c.time  m.user                  m.host           m.time comment 
SPECTRALIB3 Spectra Logic TFinity+  LTO http://spectralib3.cern.ch/ http://spectralib3cam1.cern.ch/ 613-R-001                    15000                      5000                   48 tapeops ctaproductionfrontend11 2024-11-05 18:00 tapeops ctaproductionfrontend11 2024-11-05 18:00 -       

pcvlado ~ > cta-admin pl
Missing subcommand
cta-admin pl/physicallibrary add/ch/rm/ls:
    add --name/-n <physical_library_name> --manufacturer/--ma <manufacturer>
        --model/--mo <model> [--type/-t <type>] [--guiurl/-g <gui_url>]
        [--webcamurl/-w <webcam_url>] [--location/-l <location>]
        --nbphysicalcartridgeslots/--npcs <nb_physical_cartridge_slots>
        [--nbavailablecartridgeslots/--nacs <nb_available_cartridge_slots>]
        --nbphysicaldriveslots/--npds <nb_physical_drive_slots >
        [--comment/-m <"comment">]
    ch  --name/-n <physical_library_name> [--guiurl/-g <gui_url>]
        [--webcamurl/-w <webcam_url>] [--location/-l <location>]
        [--nbphysicalcartridgeslots/--npcs <nb_physical_cartridge_slots>]
        [--nbavailablecartridgeslots/--nacs <nb_available_cartridge_slots>]
        [--nbphysicaldriveslots/--npds <nb_physical_drive_slots >]
        [--comment/-m <"comment">]
    rm  --name/-n <physical_library_name>
    ls