Add codecov token (#625)

Author: abergs

.github/workflows/main.yml

@@ -124,6 +124,8 @@ jobs:
       - name: Upload coverage to Codecov
         if: matrix.os == 'ubuntu-latest'
         uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   # Pack the output into NuGet packages
   pack: