Potential fix for code scanning alert no. 10: Workflow does not contain permissions (#12)

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

Author: mfranzke

.github/workflows/quality.yml

@@ -10,6 +10,8 @@ jobs:
   quality:
     name: Code Quality Checks
     runs-on: ubuntu-24.04
+    permissions:
+      contents: read
 
     steps:
       - name: Checkout repository
@@ -62,6 +64,8 @@ jobs:
   security:
     name: Security Scan
     runs-on: ubuntu-24.04
+    permissions:
+      contents: read
 
     steps:
       - name: Checkout repository