AmplifyBackend Update: Adds sensitive trait to required input shapes.

Author: AWS

.changes/next-release/feature-AmplifyBackend-06f1741.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AmplifyBackend",
+    "contributor": "",
+    "description": "Adds sensitive trait to required input shapes."
+}