Update git submodules

* Update docs/submodules/policy/apex-pdp.git from branch 'master'
  to cad7cff7dc945eefaf27815742461d6db6ab8eac
  - Add duplicate check, examples for kafka Properties
    
    Added checks for dealing with duplication of specification of properties
    explicitly and in kafkaPropertes
    Added examples for kafkaProperties
    Added documentation for kafkaProperties
    
    Issue-ID: POLICY-1818
    Change-Id: Icbe01d6f1d25d4570dcc85cc3db28588743b9c41
    Signed-off-by: liamfallon <liam.fallon@est.tech>
    
1 file changed