Potential fix for code scanning alert no. 416: Workflow does not contain permissions

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

Author: KSDaemon

.github/workflows/push.yml

@@ -802,6 +802,9 @@ jobs:
     name: Upload merged coverage to Codecov
     needs: [unit, integration]
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: read
     steps:
       - name: Install Codecov CLI
         run: |