Use CODECOV token

Author: andreasnoack

Diff for: .github/workflows/CI.yml

@@ -49,4 +49,5 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v5
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: lcov.info