Update git submodules

* Update releases from branch 'master'
  to b6318616052ba83de896d441396fc7c717b72411
  - Merge "[tool] Do not add reviewer to patch for unmaintained"
  - [tool] Do not add reviewer to patch for unmaintained

    Unmainained branches are not maintained by project teams, thus,
    they don't need PTL or release liaison approval. So let's not
    spam them.

    These patches are usually the patches where we move an unmaintained
    branch to End of Life. As we don't release anything out of a branch
    in unmaintained state.

    Change-Id: Ifac8392296a738d462070bd2bbf9f97c597369b6
    Signed-off-by: Előd Illés <elod.illes@est.tech>

diff --git a/releases b/releases
index 3d3ed68a3fa8242980b4fc641b257b4e5b4c9887..b6318616052ba83de896d441396fc7c717b72411 160000 (submodule)
--- a/releases
+++ b/releases
@@ -1 +1 @@
-Subproject commit 3d3ed68a3fa8242980b4fc641b257b4e5b4c9887
+Subproject commit b6318616052ba83de896d441396fc7c717b72411