chore(deps): update codecov/codecov-action action to v6

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -33,7 +33,7 @@ jobs:
         run: yarn test:ci
 
       - name: Upload coverage
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         if: matrix.node == '18'
         with:
           token: ${{ secrets.CODECOV_TOKEN }}