ci: replace workflow with Prettier-formatted version

Author: rluetken-dev

.github/workflows/ci.yml

@@ -1,22 +1,36 @@
 name: CI
+
 on:
   push:
     branches: [main]
   pull_request:
     branches: [main]
+
 concurrency:
-  group: ci-${{ github.ref }}
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
+
+permissions:
+  contents: read
+
 jobs:
-  ci:
+  lint-format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
         with:
           node-version: '20'
           cache: 'npm'
-      - name: Install
+
+      - name: Install deps
         run: npm ci
-      - name: Format (Prettier)
-        run: npm run format:check || npx prettier --check .
+
+      - name: Prettier (check)
+        run: npm run format:check
+
+      - name: ESLint
+        run: npm run lint