Upgrade libraries and CI

.github/workflows/ci.yaml

@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x, 22.x]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+      - run: npm install
+      - name: Run ci_test
+        run: npm run ci_test

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 Toshimitsu Takahashi
+Copyright (c) 2025 Toshimitsu Takahashi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal