Update git submodules

* Update plugins/download-commands from branch 'stable-2.13'
  - Merge branch 'stable-2.12' into stable-2.13
    
    * stable-2.12:
      CloneWithCommitMsgHook: Fix HTTP clone command inconsistency
    
    Change-Id: I8a86b8cc56834933391afd56fc93d4ece67a4401
    
  - CloneWithCommitMsgHook: Fix HTTP clone command inconsistency
    
    When cloning a project using HTTP schema, the "/a" in the URL was added
    only when choosing to clone without the commit hook. Now the URL is the
    same in both cases.
    
    Change-Id: I8fc0667f17cea592bd702a0441cba7ca3f762968
    (cherry picked from commit d632d6471b42a47877664a5266ba509026538a32)
    
diff --git a/plugins/download-commands b/plugins/download-commands
index 7b41f3a..5615076 160000
--- a/plugins/download-commands
+++ b/plugins/download-commands
@@ -1 +1 @@
-Subproject commit 7b41f3a413b46140b050ae5324cbbcdd467d2b3a
+Subproject commit 5615076bcf114723d1744f7d8944f0df72dbbf2b