Update git submodules

* Update docs/submodules/parser from branch 'master'
  - Merge "Add CLI in verigraph."
  - Add CLI in verigraph.

    JIRA: PARSER-180

    Add CLI to select one of the available interfaces (i.e. REST or gRPC), one of the supported service descriptor formats (i.e. TOSCA/XML, TOSCA/YAML, JSON),
    and the operations to perform (i.e. read, create, update, delete graphs and run verifications).

    Change-Id: I02f4d86e221baf0ac583d0ffd0ebe028aa6209be
    Signed-off-by: serena.spinoso <serena.spinoso@polito.it>

diff --git a/docs/submodules/parser b/docs/submodules/parser
index 11252fd..97422ce 160000 (submodule)
--- a/docs/submodules/parser
+++ b/docs/submodules/parser
@@ -1 +1 @@
-Subproject commit 11252fd2c44468d850eca6679706e2a85f702fd8
+Subproject commit 97422ce7044e14135a873c9f5b041591b86db00c