Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 3fbeaf029e392a829ab81ea7e87e18c90c58545f
  - Increase minimal Worker storage size

    At least 40GiB disk is required for Worker VM to store all necessary
    Docker images, otherwise it runs out of storage. VM resize can be done
    only during its creation (see "machine_virtual_size" [1]).

    VM data hashes no longer fitted in single lines nicely, hence they were
    broken into several lines.

    [1] https://github.com/vagrant-libvirt/vagrant-libvirt#domain-specific-options

    Issue-ID: ONAPARC-551
    Change-Id: Ib267fd8097b51f53565e0c8f3be7c86c2b3c68ad
    Signed-off-by: Pawel Wieczorek <p.wieczorek2@samsung.com>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 73862e4..3fbeaf0 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 73862e4ea030de857927c23f8f88263f8d3365e3
+Subproject commit 3fbeaf029e392a829ab81ea7e87e18c90c58545f