Web UI: Upgrade Dojo version 1.13.0 -> 1.16.2
    
    - upgrade dojo.js bundle
    - fix prepare-dojo.sh
    - update Dojo version in package.json (reference purpose only)
    
    Ticket: https://pagure.io/freeipa/issue/8222
    
    Signed-off-by: Serhii Tsymbaliuk <stsymbal@redhat.com>
    Reviewed-By: Armando Neto <abiagion@redhat.com>