Update git submodules

Update git submodules

* Update manila-specs from branch 'master'
  to bbefecb5eca6a6c727054e433d095655062ea1f6
  - Merge "Add VirtioFS testing scenarios"
  - Add VirtioFS testing scenarios

    This change adds steps and description to scenario tests related to
    the newly introduced share attachment feature through VirtioFS [1].

    [1] https://specs.openstack.org/openstack/nova-specs/specs/2023.2/approved/libvirt-virtiofs-attach-manila-shares.html

    Change-Id: I3df7c5b1f6c8f5acc5295237a176048e4605dfc7
    Signed-off-by: Carlos da Silva <ces.eduardo98@gmail.com>