Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - [web-cvp]failed to build docker image due to setuptools version

    JIRA: DOVETAIL-526

    error on docker build, upgrade the setuptools:
    error in cryptography setup command: Invalid environment marker: python_version < '3'

    Change-Id: If3b2b2ecd3a3e23f66cacb6a2048f15f1715dcd4
    Signed-off-by: grakiss <grakiss.wanglei@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index b54893f..03fb07d 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit b54893f97bdef42cd7b9e5c8fa4dd080c13d64bd
+Subproject commit 03fb07d8ecb21c4de9c6ee4e3b4b1e2faca49a28