Update git submodules

* Update docs/submodules/fuel from branch 'stable/euphrates'
  - yamllint: Fix recently introduced errors

    Change-Id: If117588f7c43306959d29032b1d5eeb3c751dc44
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit 8401f25a520843d884abb84806873baca0452ec8)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index bda4548..0f26e10 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit bda4548f2db6b87136c3a29f042d9e3341ec18ac
+Subproject commit 0f26e101fd010ed9cd17af3174f3cb2f45d6a5f1