Update git submodules

* Update docs/submodules/parser from branch 'stable/euphrates'
  - Remove python limitation for codeship

    When publish nfv-toscaparser to onap through codefish, the python
    version of 2.7.13 doesn't support again, so it will be delete in
    .python-verson

    JIRA: PARSER-161

    Change-Id: I90f1be241c539a405edc7c674e411c20de3e4ae1
    Signed-off-by: shangxdy <shang.xiaodong@zte.com.cn>

diff --git a/docs/submodules/parser b/docs/submodules/parser
index 2320606..c5c33ff 160000 (submodule)
--- a/docs/submodules/parser
+++ b/docs/submodules/parser
@@ -1 +1 @@
-Subproject commit 23206060d55f39e3e95c21aee9c80164653dc164
+Subproject commit c5c33ff28000cf16ee8ccf4426ea0e748e8a38c9