Potential fix for code scanning alert no. 6: Workflow does not contain permissions (#68)

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

Author: usrrname

.github/workflows/pr-checks.yml

@@ -14,6 +14,8 @@ concurrency:
 jobs:
   lint:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - uses: actions/checkout@v5
       - name: Set up Node.js