Update git submodules

* Update plugins/replication from branch 'stable-3.4'
  to 9a76d4505e0f327db5d2b2a650b1c1985c26077b
  - Merge branch 'stable-3.3' into stable-3.4
    
    * stable-3.3:
      Doc: make explicit that remoteNameStyle is for non-Gerrit repos
      Doc: remoteNameStyle might result in a repo name clashes
    
    Change-Id: I1b2e9c5fd408b8f8bd1a3ef3104182c6f6474559
    
  - Merge branch 'stable-3.2' into stable-3.3
    
    * stable-3.2:
      Doc: make explicit that remoteNameStyle is for non-Gerrit repos
      Doc: remoteNameStyle might result in a repo name clashes
    
    Change-Id: I32d598a36fe20c469528eca8d4c10d8775f7a3c4
    
  - Merge "Doc: remoteNameStyle might result in a repo name clashes" into stable-3.2
  - Doc: make explicit that remoteNameStyle is for non-Gerrit repos
    
    The documentation already specify non-Gerrit examples of use
    of remoteNameStyle; however, it does not say that if the remote
    repository is backed by Gerrit, the *ONLY* supported option is
    "slashes", otherwise the consequences could be catastrophic.
    
    Two Gerrit servers (e.g. primary and replica) need to have
    full alignment of repository names, as they are also referenced
    in the inherited ACLs. Having a repository name mapping, may
    disrupt the ACLs evaluation and make the remote Gerrit replica
    unusable.
    
    Bug: Issue 15318
    Change-Id: I4d9447a4d0366a98037470c0cceda36f7a1b8a25
    
  - Doc: remoteNameStyle might result in a repo name clashes
    
    When using the remoteNameStyle in the replication.config settings
    the Gerrit admin needs to be warned on the risks of using sytles
    that may be ambiguous and associate two source repositories to
    the same target repository on the replica.
    
    Example: set remoteNameStyle to basenameOnly
    
    /foo/my-repo.git => pushed to my-repo
    /bar/my-repo.git => pushed to my-repo
    
    When two commits are pushed to the same branch on the two repos
    /foo/my-repo.git and /bar/my-repo.git, the replication plugin
    would push them to the same target repo my-repo, causing clashes
    and losing commits (depending which one is pushed first).
    
    The risk needs to be highlighted so that the Gerrit admin
    can check that univocity of the mapping is respected.
    
    Bug: Issue 15315
    Change-Id: Iba42907bceb8d1c27d739f3b0cded4a1d7400686
    
diff --git a/plugins/replication b/plugins/replication
index 7d9ba0d..9a76d45 160000
--- a/plugins/replication
+++ b/plugins/replication
@@ -1 +1 @@
-Subproject commit 7d9ba0d543e8212b73d8cf8e2e2d5764b63b7678
+Subproject commit 9a76d4505e0f327db5d2b2a650b1c1985c26077b