chore(deps): move scule to devDependencies (#184)

because we removed utils.ts, `scule` is only used in the generator code.

package.json

@@ -67,6 +67,7 @@
     "memfs": "^4.9.2",
     "oxlint": "^0.9.10",
     "prettier": "^3.3.1",
+    "scule": "^1.3.0",
     "shelljs": "^0.8.5",
     "typescript": "^5.4.5",
     "typescript-eslint": "^8.8.1",
@@ -78,9 +79,6 @@
     "*.{js,cjs,ts}": "eslint --flag unstable_ts_config",
     "*": "prettier --ignore-unknown --write"
   },
-  "dependencies": {
-    "scule": "^1.3.0"
-  },
   "volta": {
     "node": "20.14.0"
   }