Temporarily downgrade codecov-action to 5.0.3 to fix CI (#1425)

Author: bdraco

.github/workflows/ci-cd.yml

@@ -345,7 +345,7 @@ jobs:
     - name: Send coverage data to Codecov
       if: >-
         !cancelled()
-      uses: codecov/codecov-action@v5
+      uses: codecov/codecov-action@v5.0.3
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         files: ./coverage.xml