Update git submodules

* Update plugins/cookbook-plugin from branch 'master'
  - Merge branch 'stable-2.13'
    
    * stable-2.13:
      HelloWebLink: Make the dummy image more visible
    
    Change-Id: I5291aabcf3c57f76fe17c65a770c09fe80022412
    
  - HelloWebLink: Make the dummy image more visible
    
    Change-Id: If2b80d5fd2f719ebd1db4c9b15f5c8e50f5cda3f
    
diff --git a/plugins/cookbook-plugin b/plugins/cookbook-plugin
index d3c74f3..e1855f1 160000
--- a/plugins/cookbook-plugin
+++ b/plugins/cookbook-plugin
@@ -1 +1 @@
-Subproject commit d3c74f3692b0b10926cab300baaef905fcdf4136
+Subproject commit e1855f1f4689bf00b2264668ef707c6aee4c216e