chore(deps): bump Rspack 1.6.0-beta.1 (#1904)

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## Summary by CodeRabbit

* **Chores**
* Updated build toolchain dependencies to the latest beta version for
improved performance and compatibility.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

## Checklist

<!--- Check and mark with an "x" -->

- [ ] Tests updated (or not required).
- [ ] Documentation updated (or not required).
- [ ] Changeset added, and when a BREAKING CHANGE occurs, it needs to be
clearly marked (or not required).

Author: colinaaa