chore: add setup-node + npm ci to lint workflow (#548)

.github/workflows/lint.yml

@@ -15,6 +15,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "latest"
+          cache: "npm"
+
+      - run: npm ci
+
       - uses: reviewdog/action-eslint@v1
         with:
           reporter: github-pr-review