Update ci.yml

Author: devmotion

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
         with:
           fail_ci_if_error: true
           token: ${{ secrets.CODECOV_TOKEN }}
-          file: lcov.info
+          files: lcov.info
   docs:
     name: Documentation
     runs-on: ubuntu-latest