Potential fix for code scanning alert no. 7: Workflow does not contain permissions (#67)

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

Author: usrrname

.github/workflows/pr-checks.yml

@@ -25,6 +25,8 @@ jobs:
         run: npm run lint
 
   test:
+    permissions:
+      contents: read
     runs-on: ${{matrix.os}}
     strategy:
       matrix: