Add support for Node.js 22

See:
- https://nodejs.org/en/blog/announcements/v22-release-announce
- https://github.com/nodejs/Release#release-schedule

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
   test:
     uses: ./.github/workflows/test.yml
     with:
-      node-version: '["16", "18", "20"]'
+      node-version: '["16", "18", "20", "current"]'
       os: '["ubuntu-latest", "windows-latest", "macos-latest"]'
       exclude: '[{"node-version": "16", "os": "windows-latest"}]'
       test-options: 'foo bar'

.github/workflows/test.yml

@@ -6,7 +6,7 @@ on:
       node-version:
         description: Node.js version
         required: false
-        default: '["18", "20", "current"]'
+        default: '["18", "20", "22", "current"]'
         type: string
       os:
         description: OS name