Potential fix for code scanning alert no. 41: Workflow does not contain permissions

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

.github/workflows/github-releases-to-discord.yml

@@ -7,6 +7,8 @@ on:
 jobs:
   github-releases-to-discord:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - name: Checkout
         uses: actions/checkout@v5