Update .github/workflows/ci.yml

Co-authored-by: James Wrigley <[email protected]>

Author: ViralBShah

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v5
         with:
-          file: lcov.info
+          files: lcov.info
           token: ${{ secrets.CODECOV_TOKEN }}
   docs:
     runs-on: ubuntu-latest