Potential fix for code scanning alert no. 65: Workflow does not contain permissions

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

Author: madflojo

.github/workflows/build.yml

@@ -8,6 +8,8 @@ on:
       - master
       - main
   pull_request:
+permissions:
+  contents: read
 jobs:
   tests:
     runs-on: ubuntu-latest