ci(broken-link-checker): add GitHub Actions for broken link checking

- The workflow is scheduled to run every weekday at 13:00 UTC.
- This will catch broken links of tanstack.com

Author: manudeli

.github/workflows/broken-link-checker.yaml

@@ -0,0 +1,24 @@
+name: Broken link checker
+
+on:
+  schedule:
+    - cron: '0 13 * * 1-5'
+  workflow_dispatch:
+
+jobs:
+  broken-link-checker:
+    name: Broken link checker
+    runs-on: ubuntu-latest
+    steps:
+      - name: Git Checkout
+        uses: actions/checkout@v4
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+          cache: pnpm
+      - name: Install Packages
+        run: pnpm install --frozen-lockfile
+      - run: pnpm blc https://tanstack.com -ro --excludeExternalLinks

package.json

@@ -85,6 +85,7 @@
     "@types/react-dom": "^18.3.1",
     "@types/remove-markdown": "^0.3.4",
     "autoprefixer": "^10.4.18",
+    "broken-link-checker": "^0.7.8",
     "dotenv-cli": "^8.0.0",
     "eslint": "^8.57.0",
     "eslint-plugin-unicorn": "^49.0.0",