Update git submodules

* Update docs/submodules/holmes/engine-management.git from branch 'master'
  to 691870a10f5401c9561fbe1494294d5191889410
  - Revert "Updatd the expiry date of the cert"
    
    This reverts commit c7420bbe5ab1764a04b8a0a81d264f24b8307b93.
    
    Change-Id: Ib4572153e930199626bf00ffa49cfd38845319d6
    Issue-ID: HOLMES-215
    Signed-off-by: GuangrongFu <fu.guangrong@zte.com.cn>
    
diff --git a/docs/submodules/holmes/engine-management.git b/docs/submodules/holmes/engine-management.git
index 4a3f556..691870a 160000
--- a/docs/submodules/holmes/engine-management.git
+++ b/docs/submodules/holmes/engine-management.git
@@ -1 +1 @@
-Subproject commit 4a3f55693f0673722cabb6661fb48d9019bf2c20
+Subproject commit 691870a10f5401c9561fbe1494294d5191889410