ci: clean node_modules and target

[SyMind]

Summary

Clean node_modules and target directories to prevent them from growing too large.

1. On Windows, use powershell to check the directory creation time since the du command is very slow.
2. On Linux and macOS, continue using the du command to check directory size.

Checklist

• [ ] Tests updated (or not required).
• [ ] Documentation updated (or not required).