Fix codecov action

Author: oschulz

.github/workflows/ci.yml

@@ -55,6 +55,8 @@ jobs:
       - uses: codecov/codecov-action@v4
         if: matrix.version == '1' && matrix.os == 'ubuntu-latest' && matrix.arch == 'x64'
         with:
+          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: lcov.info
   docs:
     name: Documentation