ci: add ci job to run eslint on api code

.github/workflows/lint.yml

@@ -0,0 +1,17 @@
+name: Lint
+on: [ push ]
+
+jobs:
+  eslint-reva-api:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20.x
+          cache: "npm"
+      - name: Installing dependencies
+        run: npm ci
+      - name: Running ESLint
+        run: npm run eslint -w reva-api