Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to 863c0ad7fd25c06efce969fedac85887b1fb7e73
  - Remove cleanup from play-resources

    When play-resources does not use
    bindmounting, there is no need to manually clean up resource files.
    That makes it possible to remove cleanup.yml all together.
    This is in preparation to remove the othervise unneeded
    cleanup-directories role.

    Change-Id: Id6c05700e8cd2e9c8f91a3cfdf46022b170e1e1e
    Issue-ID: OOM-1902
    Signed-off-by: Michal Zegan <m.zegan@samsung.com>

diff --git a/docs/submodules/oom/offline-installer.git b/docs/submodules/oom/offline-installer.git
index 05bd819..863c0ad 160000 (submodule)
--- a/docs/submodules/oom/offline-installer.git
+++ b/docs/submodules/oom/offline-installer.git
@@ -1 +1 @@
-Subproject commit 05bd819cfac6ac1412a66c5a88650fb2fc8b93bd
+Subproject commit 863c0ad7fd25c06efce969fedac85887b1fb7e73