Update litani submodule pointer (#108)

karkhaz · web-flow · commit 77e7c0168af4 · 2020-12-04T11:35:06.000-08:00
This update ensures that final proof results get posted to GitHub even
when there are proof failures.
diff --git a/test/cbmc/litani b/test/cbmc/litani
@@ -1 +1 @@
-Subproject commit 5dc1e1f786a4c6f2eb2541feb358be548e502a46
+Subproject commit fcc583c4a5d5b9bebbefce5626256283fab1edda
