Bump actions/checkout from 4 to 5 (#26273)

Author: dependabot[bot]

.github/workflows/verify-markdown-links.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Verify markdown links
         id: verify