Merge "Revert "Add git submodule for openretriever""

diff --git a/docs/submodules/releng b/docs/submodules/releng
index d4d7b58..64b2f07 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit d4d7b5821f6d9a783bed651441b9f73c5cf64cbc
+Subproject commit 64b2f0789690153712c94b8fb9ffcbb446afb640