fix CI

Author: Remi-Gau

.github/workflows/moxunit.yml

@@ -32,7 +32,6 @@ jobs:
     - name: Code coverage
       uses: codecov/codecov-action@v1
       with:
-       token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
        file:  coverage.xml # optional
        flags: unittests # optional
        name: codecov-umbrella # optional