Update git submodules

* Update releases from branch 'master'
  to 51a6b59706eb902eef38d81a1b126d43440d7318
  - Merge "Move unmaintained/victoria to EOL"
  - Move unmaintained/victoria to EOL

    As announced on mailing list [1], this patch moves
    unmaintained/victoria to End of Life.

    [1] https://lists.openstack.org/archives/list/openstack-discuss@lists.openstack.org/thread/N24CYAJMLVJMAJMUE4RA5U7KOL7LABOW/

    Change-Id: I384a9a203672e24fd1c392882700a42ca069f367
    Signed-off-by: Előd Illés <elod.illes@est.tech>

diff --git a/releases b/releases
index 66d88b44c9ad98b76632c92ae75dda4ab5a231cf..51a6b59706eb902eef38d81a1b126d43440d7318 160000 (submodule)
--- a/releases
+++ b/releases
@@ -1 +1 @@
-Subproject commit 66d88b44c9ad98b76632c92ae75dda4ab5a231cf
+Subproject commit 51a6b59706eb902eef38d81a1b126d43440d7318