Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [docker] Use distro docker-compose if not broken

    While at it, use explicit `docker-compose pull` call to maintain
    backwards compatibility with older docker-compose (1.8.0 on aarch64).

    JIRA: FUEL-383

    Change-Id: I0f6ac4fb59c0a286ac99a1a0dc4484d00f3837fe
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 8bb79e6..1854f7a 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 8bb79e6beb10738d2756d8b33950452bcc44f493
+Subproject commit 1854f7ab732c79db446f9b240e95533a1e6698ca