Update git submodules
Update git submodules

* Update plugins/replication from branch 'stable-3.0'
  to 562976a0a38e21e4a54026d910b17fa3060c2f4a
  - Merge branch 'stable-2.16' into stable-3.0
    
    * stable-2.16:
      Fix replication of project deletion
      Improve project creation replication integration test
    
    Change-Id: I1818511118ed1738cf76d48cb49b66a52f1d83c8
    
  - Fix replication of project deletion
    
    Fix a regression where the project deletion was not propagated
    to the remote nodes because its associated project state was
    missing from the project cache.
    
    When replicating deletions, the project state is not present as
    the replication plugin is receiving the deletions ex-post
    and therefore do not have access to the project anymore.
    
    The associated checks for project visibility and read only state
    are not valid for project deletions.
    
    Bug: Issue 12806
    Change-Id: I7a9ac01b01d5dd40b8bf0c4d3347256f430329ac
    
  - Improve project creation replication integration test
    
    Make sure project creation is correctly managed
    and tested, asserting that the repository contains at least one
    ref replicated and not just the bare repo showing up.
    
    Change-Id: I0fdc1e73390c2abd3e40d2a02fd7e4ce7f20bb67
    
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