chore: update dependencies and configuration

.github/workflows/test.yml

@@ -7,13 +7,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [10.x, 12.x]
+        # LTS (20.x) and latest (22.x) only
+        node-version: [20.x, 22.x]
     steps:
       - uses: actions/checkout@v2
       - name: Setup node
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node }}
-      - run: yarn install
-      - run: yarn lint
-      - run: yarn test
+      - run: npm install
+      - run: npm run lint
+      - run: npm run test

.gitignore

@@ -2,3 +2,4 @@ node_modules
 lib
 dist
 .eslintcache
+.test-cache

eslint.config.mjs

@@ -0,0 +1,21 @@
+// ESLint v9+ config
+import js from '@eslint/js'
+import tseslint from 'typescript-eslint'
+
+export default [
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ['src/**/*.ts'],
+    languageOptions: {
+      parser: tseslint.parser,
+      parserOptions: {
+        ecmaVersion: 2022,
+        sourceType: 'module'
+      }
+    }
+  },
+  {
+    ignores: ['dist/', 'node_modules/', 'compiled/']
+  }
+]