ci: tests workflow

Author: urish

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+name: Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+      - name: Install dependencies
+        run: npm ci
+      - name: Run tests
+        run: npm test