Bump rollup from 2.29.0 to 2.30.0 in /token-swap/js (solana-labs#619)

Bumps [rollup](https://github.com/rollup/rollup) from 2.29.0 to 2.30.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v2.29.0...v2.30.0)

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