message: chore(scaffolder): move express to dependencies for reasons
diff: "dependencies": {
  "@backstage/backend-common": "^0.1.1-alpha.9",
  "@backstage/catalog-model": "^0.1.1-alpha.9",
  + "@types/express": "^4.17.6",
  "compression": "^1.7.4",
  "cors": "^2.8.5",
  "dockerode": "^3.2.0",
  "devDependencies": {
  "@backstage/cli": "^0.1.1-alpha.9",
  "@types/fs-extra": "^9.0.1",
  - "@types/express": "^4.17.6",
  "@types/supertest": "^2.0.8",
  "supertest": "^4.0.2",
  "yaml": "^1.10.0"
  