Update git submodules

* Update plugins/replication from branch 'master'
  - Merge branch 'stable-2.13'
    
    * stable-2.13:
      ReplicationMetrics: Make members private final
    
    Change-Id: Icf7dd3f5c9dd518c8984546aba9708525a428f79
    
  - ReplicationMetrics: Make members private final
    
    These members should only be accessed through the public methods:
    
     - start(...), to create/start a new timer context
     - record(...), to record the retry/delay values
    
    Mark the members as private final to prevent unintended access.
    
    Change-Id: I69a7e3b13ba4c344f3176528306163ebef07653c
    
diff --git a/plugins/replication b/plugins/replication
index 43bcff7..e5099ce 160000
--- a/plugins/replication
+++ b/plugins/replication
@@ -1 +1 @@
-Subproject commit 43bcff79216014f822d26491345dd3137e887bc1
+Subproject commit e5099cec8dbce52054640a9d0710071b1aa18e2b