Potential fix for code scanning alert no. 4: Workflow does not contain permissions (#9)

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

Author: snus-kin

.github/workflows/build_and_test.yml

@@ -10,6 +10,8 @@ on:
 
 jobs:
   build-and-test:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
 
     steps: