fix: codecov

Author: ssut

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
         run: |
           uv run python -m pytest --cov=googletrans --cov-report=xml
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./coverage.xml
-          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}