feat: update node version

Author: rpidanny

.github/workflows/CI.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
     - uses: actions/checkout@v3

.github/workflows/package.yml

@@ -12,7 +12,7 @@ on:
         required: true
 
 env:
-  NODE_VERSION: 18
+  NODE_VERSION: 20
 
 jobs:
   pack:

.github/workflows/release.yml

@@ -6,7 +6,7 @@ on:
       - 'main'
 
 env:
-  NODE_VERSION: 18
+  NODE_VERSION: 20
 
 jobs:
   build-test:

.nvmrc

@@ -0,0 +1 @@
+v20.8.1

package.json

@@ -7,6 +7,9 @@
     "type": "git",
     "url": "https://github.com/rpidanny/leetcode-gpt.git"
   },
+  "engines": {
+    "node": ">=20.8.1"
+  },
   "scripts": {
     "build": "node utils/build.js",
     "build:dev": "rm -rf build && NODE_ENV=production webpack",