Bump solana-program from 1.18.26 to 2.2.1

Bumps [solana-program](https://github.com/anza-xyz/solana-sdk) from 1.18.26 to 2.2.1.
- [Release notes](https://github.com/anza-xyz/solana-sdk/releases)
- [Commits](https://github.com/anza-xyz/solana-sdk/commits/sdk@v2.2.1)

---
updated-dependencies:
- dependency-name: solana-program
  dependency-version: 2.2.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]