Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 8a5f3aebc6b5681c5c44307b7a0cdf868802e790
  - ArtifactsBusinessLogic refactor to remove NullPointerException

    - Reformatted `downloadResourceInstanceArtifactByUUIDs`
    - Fixed Sonar-related warning regarding a NPE in `validateInput`

    Issue-ID: SDC-2979
    Signed-off-by: Chris Andre <chris.andre@yoppworks.com>
    Change-Id: I5a62daabcc436f28fba1f09317c5723281df15bf

diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index 64ff2b9..8a5f3ae 160000 (submodule)
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit 64ff2b9fa9eca541603a8e2f2bd08bf24de25338
+Subproject commit 8a5f3aebc6b5681c5c44307b7a0cdf868802e790