chore: Update contracts to main.

tjholm · tjholm · commit a8f765a4ade5 · 2021-06-18T16:20:29.000+10:00
diff --git a/contracts b/contracts
@@ -1 +1 @@
-Subproject commit 1c50d7796aa82714d0d3e43263440a43770dafc6
+Subproject commit 19a3cff0bb9ce9839cc7fb48f16a459f6e6ca3db
