ESM rewrite of this plugin

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
-        node: ["16", "18", "20", "22", "24"]
+        node: ["18", "20", "22", "24"]
     name: Node.js ${{ matrix.node }} on ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3

.github/workflows/release.yml

@@ -6,19 +6,20 @@ permissions: read-all
 jobs:
   build:
     runs-on: ubuntu-latest
+    environment: GitHub Publish
     permissions:
       contents: read
       id-token: write
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # 4.1.7
       - uses: actions/setup-node@1e60f620b9541d16bece96c5465dc8ee9832be0b # 4.0.3
         with:
-          node-version: "20"
+          node-version: "22"
           registry-url: 'https://registry.npmjs.org'
-      - run: npm install
+      - run: npm install -g npm@latest
+      - run: npm ci
       - run: npm test
       - if: ${{ github.event.release.tag_name != '' && env.NPM_PUBLISH_TAG != '' }}
         run: npm publish --provenance --access=public --tag=${{ env.NPM_PUBLISH_TAG }}
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
           NPM_PUBLISH_TAG: ${{ contains(github.event.release.tag_name, '-beta.') && 'beta' || 'latest' }}

.gitignore

@@ -1,4 +1,2 @@
 node_modules/
 _site/
-package-lock.json
-yarn.lock

demo/eleventy-config.js

@@ -1,6 +1,6 @@
-const syntaxHighlight = require("../.eleventy.js");
+import syntaxHighlight from "../syntaxHighlight.js";
 
-module.exports = function(eleventyConfig) {
+export default function(eleventyConfig) {
   eleventyConfig.addPlugin(syntaxHighlight, {
     // alwaysWrapLineHighlights: true
     preAttributes: { tabindex: 0 }