chore(deps): update codecov/codecov-action action to v6 (#159)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/test.yml

@@ -72,7 +72,7 @@ jobs:
       - name: Build coverage report
         run: ./node_modules/.bin/nyc report --reporter text-lcov > coverage.lcov
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           fail_ci_if_error: true
           file: coverage.lcov