Update git submodules

* Update plugins/replication from branch 'master'
  to 8fd3c271ce0a21480e3d04da5ad2112efea3bedf
  - Provide an option to skip replication of NoteDb meta refs
    
    Replicating NoteDb meta refs is not needed when the remote does not run
    a Gerrit instance.
    
    Provide a config `remote.<NAME>.replicateNoteDbMetaRefs` which implies
    whether to replicate the NoteDb meta refs (`refs/changes/*/meta`,
    `refs/changes/*/robot-comments`, `refs/draft-comments/*`,
    `refs/starred-changes/*`) or not. Time taken to replicate to a
    non-Gerrit replica can be improved with this change.
    
    Change-Id: I653f2e0a5b66dcded40c11ca23d2d22c63ccc396
    
diff --git a/plugins/replication b/plugins/replication
index 47ee3da..8fd3c27 160000
--- a/plugins/replication
+++ b/plugins/replication
@@ -1 +1 @@
-Subproject commit 47ee3dab0dd96900e85662adf0d5f48a33d17733
+Subproject commit 8fd3c271ce0a21480e3d04da5ad2112efea3bedf