Bump solana-pubkey from 3.0.0 to 4.0.0 in the solana-updates group

Bumps the solana-updates group with 1 update: [solana-pubkey](https://github.com/anza-xyz/solana-sdk).


Updates `solana-pubkey` from 3.0.0 to 4.0.0
- [Release notes](https://github.com/anza-xyz/solana-sdk/releases)
- [Commits](https://github.com/anza-xyz/solana-sdk/compare/sdk@v3.0.0...hash@v4.0.0)

---
updated-dependencies:
- dependency-name: solana-pubkey
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: solana-updates
...

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Author: dependabot[bot]