build(deps): bump solana-rent from 4.2.1 to 4.3.0 (#345)

Bumps [solana-rent](https://github.com/anza-xyz/solana-sdk) from 4.2.1 to 4.3.0.
- [Release notes](https://github.com/anza-xyz/solana-sdk/releases)
- [Commits](https://github.com/anza-xyz/solana-sdk/compare/rent@v4.2.1...hash@v4.3.0)

---
updated-dependencies:
- dependency-name: solana-rent
  dependency-version: 4.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]