Update year in license header

models/basic/SmsUserInfo.ts

@@ -3,7 +3,7 @@
  * Web client of the Sensor Management System software developed within
  * the Helmholtz DataHub Initiative by GFZ and UFZ.
  *
- * Copyright (C) 2020
+ * Copyright (C) 2021
  * - Nils Brinckmann (GFZ, nils.brinckmann@gfz-potsdam.de)
  * - Marc Hanisch (GFZ, marc.hanisch@gfz-potsdam.de)
  * - Helmholtz Centre Potsdam - GFZ German Research Centre for