Update git submodules

Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 66965fca9def6007465aacc2fed220690229c9c5
  - Set version for MarkupSafe to 0.23

    As MarkupSafe>=1.0 is not found in Nexus, fixing version to 0.23
    which is the last version possible to use with Jinja 2.10.1

    Jinja 2.10.1 is required by flask 1.0.3 installed in mso-simulator
    container in oof-oof-cmso-service

    Relates to OOM-1869

    Issue-ID: OOM-1920

    Change-Id: I02d5fb01db12aa2a3a55df4be65817e22b589c32
    Signed-off-by: Tomáš Levora <t.levora@partner.samsung.com>