chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/cloudflare-pages.yml

@@ -18,7 +18,7 @@ jobs:
     name: Publish to Cloudflare Pages
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node
         uses: actions/setup-node@v4

.github/workflows/lint.yml

@@ -7,7 +7,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v4
         with:
           node-version: 22