feat: Cancun support

Author: sambacha

.eslintrc.js

@@ -0,0 +1,14 @@
+module.exports = {
+  env: {
+    browser: true,
+    es6: true,
+    node: true
+  },
+  parserOptions: {
+    ecmaVersion: 2015,
+    sourceType: "module"
+  },
+  // no rules, this file exists only to lint the grammars and check
+  // that no ES2018 or newer syntax has crept in by accident
+  rules: {}
+};

.github/workflows/test.yml

@@ -1,18 +1,20 @@
 name: Build and Test
 
 on:
-  - push
-  - pull_request
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
-    - uses: actions/setup-node@v1
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
       with:
-        node-version: 12.x
-    - name: npm install and build
-      run: npm ci
-    - name: test
-      run: npm test
+        node-version: 20
+    - run: npm ci
+    - run: npm test
+
+