message: scaffolder: add backstage integration dependency
diff: "@backstage/catalog-model": "^0.7.2",
  "@backstage/config": "^0.1.3",
  "@backstage/core": "^0.6.3",
  + "@backstage/integration": "^0.5.0",
  "@backstage/plugin-catalog-react": "^0.1.0",
  "@backstage/theme": "^0.2.3",
  "@material-ui/core": "^4.11.0",
  