Add LOWCODER_SUPERUSER_USERNAME & LOWCODER_SUPERUSER_PASSWORD to the protect env key list

Author: Sebastian Reid

server/api-service/lowcoder-domain/src/main/java/org/lowcoder/domain/serversetting/service/ServerSettingServiceImpl.java

@@ -29,7 +29,9 @@ public class ServerSettingServiceImpl implements ServerSettingService {
     "LOWCODER_ADMIN_SMTP_USERNAME",
     "LOWCODER_ADMIN_SMTP_PASSWORD",
     "LOWCODER_SUPERADMIN_PASSWORD",
-    "LOWCODER_SUPERADMIN_USERNAME");
+    "LOWCODER_SUPERADMIN_USERNAME",
+    "LOWCODER_SUPERUSER_PASSWORD",
+    "LOWCODER_SUPERUSER_USERNAME");
 
     @Autowired
     public ServerSettingServiceImpl(ServerSettingRepository repository) {