Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 0cda6c2d017d6cd94e15e7f3fd227ddf26912a3b
  - Update git submodules

    * Update kubernetes/robot from branch 'master'
      to a8e1918a02156ecec86409948d400669c2e67bb7
      - Adapt CLI healthcheck test for HTTPS

        CLI provided a new docker version fixing the security issue
        consisting in exposing HTTP public port
        The code of the associated healthcheck must be updated

        Issue-ID: INT-1501

        Signed-off-by: mrichomme <morgan.richomme@orange.com>
        Change-Id: I0b66afa3d77be490ddf914d3a0cc3adae0636da0