add github workflow for linting

.github/workflows/lint.yml

@@ -0,0 +1,29 @@
+name: ESLint
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  NODE_VERSION: 18
+
+jobs:
+  linting:
+    name: Linting
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: npm i
+
+      - name: Lint
+        run: npm run lint

package.json

@@ -8,7 +8,8 @@
   "license": "MIT",
   "scripts": {
     "dev": "nodemon src/index.js",
-    "start": "node src/index.js"
+    "start": "node src/index.js",
+    "lint": "eslint src/**/*.js"
   },
   "dependencies": {
     "@discordjs/opus": "^0.9.0",