Update git submodules

* Update docs/submodules/sdc/sdc-workflow-designer.git from branch 'master'
  to 2420e00019cbeaec0bd7d1627dd4abc0430b4bf6
  - Create Version 1.6.1
    
    change version to 1.6.1
    Issue-ID: SDC-2595
    
    Signed-off-by: shrek2000 <oren.kleks@amdocs.com>
    Change-Id: I0af027a908d1993ffc1edba239e6e36768c049a9
    
1 file changed