Potential fix for code scanning alert no. 1: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
Signed-off-by: Mustapha BARKI <code4yo@gmail.com>

Author: akabarki76

.github/workflows/ci.yml

@@ -3,6 +3,8 @@ name: CI
 on:
   push:
     branches: [ main ]
+permissions:
+  contents: read
 jobs:
   test:
     name: Python ${{ matrix.python-version }}