Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 1402489faba6767edffc4909a2f95a13a2bbd6da
  - Update pnf-sw-upgrade module to latest engine v2.8.1

    - Using loguru to follow new recommend standard

    - Renamed Yang model filename to comply with
      https://tools.ietf.org/html/rfc6020#section-5.2

    - Renamed initialization data to reflect the target datastore

    Issue-ID: INT-1516
    Signed-off-by: ebo <eliezio.oliveira@est.tech>
    Change-Id: Ifde9e832b6a308dc918e3a84e03bfd43ad0f9b63

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index ae8d50c..1402489 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit ae8d50ce126508c11667a85c4781a2c77cf2a814
+Subproject commit 1402489faba6767edffc4909a2f95a13a2bbd6da