CI: enforce awesome-lint on README

CONTRIBUTING asks contributors to run `npx awesome-lint`, but CI only
ran the link check, so lint errors could land undetected. Add a Lint
workflow that runs it on README/workflow changes. Reuses the pinned
checkout SHA from link-check.yml; relies on the runner's preinstalled
Node (no setup-node action).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: webdevbyjoss

.github/workflows/awesome-lint.yml

@@ -0,0 +1,27 @@
+name: Lint
+
+on:
+  pull_request:
+    paths:
+      - "README.md"
+      - ".github/workflows/awesome-lint.yml"
+  push:
+    branches:
+      - main
+    paths:
+      - "README.md"
+      - ".github/workflows/awesome-lint.yml"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: Run awesome-lint
+        run: npx --yes awesome-lint