Update copilot-setup-steps.yml

Author: BenjaminMichaelis

.github/workflows/copilot-setup-steps.yml

@@ -18,6 +18,10 @@ jobs:
   copilot-setup-steps:
     name: copilot-setup-steps
     runs-on: ubuntu-latest
+
+    permissions:
+      # If you want to clone the repository as part of your setup steps, for example to install dependencies, you'll need the `contents: read` permission.
+      contents: read
     steps:
     - uses: actions/checkout@v5
     - name: Setup .NET