Update git submodules
Update git submodules

* Update plugins/replication from branch 'stable-3.0'
  to 727d62d9d0dddc53fad52ac61d936155cad782ad
  - ReplicationIT: Test that branch deletion is replicated
    
    When a branch is deleted, the deletion should be replicated to
    the remote when "remote.name.mirror" is enabled.
    
    Change-Id: If59a9bb15958f4559d62452a309afcf1ca6c3789
    
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