message: Make optional peer dependencies of date libs
diff: "@material-ui/core": "^5.0.0-alpha.5",
  "@material-ui/lab": "^5.0.0-alpha.5",
  "@types/react": "^16.8.6",
  + "date-fns": "^2.0.0",
  + "dayjs": "^1.8.17",
  + "luxon": "^1.21.3",
  + "moment": "^2.24.0",
  "react": "^16.8.4",
  "react-dom": "^16.8.4"
  },
  },
  "@material-ui/lab": {
  "optional": true
  + },
  + "date-fns": {
  + "optional": true
  + },
  + "dayjs": {
  + "optional": true
  + },
  + "luxon": {
  + "optional": true
  + },
  + "moment": {
  + "optional": true
  }
  },
  "dependencies": {
  