Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Add a job to run new proposed_tests on Apex"
  - Add a job to run new proposed_tests on Apex

    Change-Id: I97f324a07c63199dd06f2871d6809e42f29a2a73
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 288b957..e5d71f0 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 288b95716bbf4392b19d782dbf0ee2d08f5d3e2c
+Subproject commit e5d71f0083ac5c343d206daab7d205c31999ffcc