update in template too

Author: sentrivana

scripts/split-tox-gh-actions/templates/test_group.jinja

@@ -92,7 +92,7 @@
 
       - name: Upload coverage to Codecov
         if: {% raw %}${{ !cancelled() }}{% endraw %}
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.0.2
         with:
           token: {% raw %}${{ secrets.CODECOV_TOKEN }}{% endraw %}
           files: coverage.xml