Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 44757b3478fa838ecab3ba42b2ec7aab0c30ecf4
  - netconf-pnp-simulator: fix invalid ref to libssh v0.8.8

    This version was upgraded to 0.8.9 on 2020-04-09.
    Fortunately the new 0.9.4 fixes the bug that was forcing us to use
    the old 0.8.x

    Issue-ID: INT-1124
    Change-Id: I6dacac8925af047d2e5342a76da6eb221074ddd9
    Signed-off-by: ebo <eliezio.oliveira@est.tech>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index cd33b63..44757b3 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit cd33b63dee361ad7e1a5f84131a03a482282f43a
+Subproject commit 44757b3478fa838ecab3ba42b2ec7aab0c30ecf4