message: Add support for "npm run outdated:dependencies"
diff: "install:frontend": "cd source/frontend && npm install",
  "install:imodeljs-addon": "node source/backend/scripts/install-imodeljs-addon.js",
  "install:test": "cd source/test && npm install",
  - "postupdate": "concurrently \"npm run update:backend\" \"npm run update:frontend\" \"npm run update:test\"",
  + "outdated:dependencies": "concurrently \"npm run outdated:backend\" \"npm run outdated:frontend\" \"npm run outdated:test\"",
  + "outdated:backend": "cd source/backend && npm outdated",
  + "outdated:frontend": "cd source/frontend && npm outdated",
  + "outdated:test": "cd source/test && npm outdated",
  + "update:dependencies": "concurrently \"npm run update:backend\" \"npm run update:frontend\" \"npm run update:test\"",
  "update:backend": "cd source/backend && npm update",
  "update:frontend": "cd source/frontend && npm update",
  "update:test": "cd source/test && npm update",
  