Update git submodules

Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Deploy Pharos Dashboard on changes to compose file"
  - Deploy Pharos Dashboard on changes to compose file

    Instead of deploying the dashboard when changes to any file happens,
    only changes to the docker-compose.yml file should trigger a deploy.

    The deployment process would then be as follows:
      - Tag pharos-tools
      - Create a patch to set the tag in 'docker-compose.yml'
      - Merge the patch
      - New version of dashboard deployed at specific tag

    Change-Id: I67a6237f00b96021df24e7a79a063d31f43df5a6
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>