Move tsconfig to devDependencies

Author: benjie

package.json

@@ -52,7 +52,6 @@
   "homepage": "https://github.com/graphile/worker#readme",
   "dependencies": {
     "@graphile/logger": "^0.2.0",
-    "@tsconfig/node18": "^18.2.4",
     "@types/debug": "^4.1.10",
     "@types/pg": "^8.10.5",
     "cosmiconfig": "^8.3.6",
@@ -73,6 +72,7 @@
     "@fortawesome/free-solid-svg-icons": "^6.5.1",
     "@fortawesome/react-fontawesome": "^0.2.0",
     "@mdx-js/react": "^1.6.22",
+    "@tsconfig/node18": "^18.2.4",
     "@types/jest": "^26.0.0",
     "@types/json5": "^2.2.0",
     "@types/node": "^20.8.7",