Potential fix for code scanning alert no. 89: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: dcramer

.github/workflows/e2e.yml

@@ -13,6 +13,9 @@ on:
       - 'packages/mcp-cloudflare/**'
       - 'packages/e2e/**'
 
+permissions:
+  contents: read
+
 jobs:
   e2e:
     runs-on: ubuntu-latest