Fix broken links (#105250)

Co-authored-by: Jack Baldry <jack.baldry@grafana.com>

.github/workflows/deploy-pr-preview.yml

@@ -14,8 +14,10 @@ permissions: {}
 jobs:
   deploy-pr-preview:
     permissions:
-      contents: read
-      pull-requests: write
+      contents: read # Clone repositories.
+      id-token: write # Fetch Vault secrets.
+      pull-requests: write # Create or update PR comments.
+      statuses: write # Update GitHub status check with deploy preview link.
     if: "!github.event.pull_request.head.repo.fork"
     uses: grafana/writers-toolkit/.github/workflows/deploy-preview.yml@main # zizmor: ignore[unpinned-uses]
     with: