Use codecov token in ci.yml (#182)

Author: jishnub

.github/workflows/ci.yml

@@ -49,6 +49,7 @@ jobs:
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v4
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: lcov.info
   docs:
     name: Documentation