Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 712febd76b825dfe3466d637b3cea5f74193859e
  - Update expired vescollector image
    
    There is no 1.4.1-STAGING-latest or SNAPSHOT-latest for vescollector
    
    Change-Id: I909e2288f01c00be8fd51e9c63e8fbf4b9231c61
    Issue-ID: INT-1047
    Signed-off-by: Yang Xu <yang.xu3@huawei.com>
    
1 file changed