create auto linter workflow

.github/workflows/linter.yaml

@@ -0,0 +1,21 @@
+name: linter
+on:
+  pull-request:
+
+jobs:
+  eslint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v3
+
+      - name: setup node
+        uses: actions/setup-node@v3
+        with:
+          node-version: "20.x"
+
+      - name: install dependencies
+        run: npm install
+
+      - name: run eslint
+        run: npm run lint