patch: increase qos default settings for QA test cases

- allow outgoing messages upto 1MB
- increase queue size to 10MB

cmd/xmidt-agent/default-config.yaml

@@ -127,8 +127,8 @@ mock_tr_181:
 xmidt_agent_crud:
   service_name: xmidt_agent
 qos:
-  max_queue_bytes:  1048576  # 1 * 1024 * 1024 // 1MB max/queue,
-  max_message_bytes: 262144 # 256 * 1024      // 256 KB
+  max_queue_bytes:  10485760  # 10 * 1024 * 1024 // 10MB max/queue,
+  max_message_bytes: 1048576 # 1024 * 1024      // 1MB
   priority: newest
 metadata:
   fields: