message: fix(solar-simulator): add concurrently to dependencies
diff: "bn.js": "5.0.0",
  "body-parser": "1.19.0",
  "commander": "4.0.0",
  + "concurrently": "5.0.0",
  "cors": "2.8.5",
  "csv-parse": "4.6.5",
  "dotenv": "^8.2.0",
  