Bump soroban-env-host from 25.0.1 to 26.0.0

Bumps [soroban-env-host](https://github.com/stellar/rs-soroban-env) from 25.0.1 to 26.0.0.
- [Release notes](https://github.com/stellar/rs-soroban-env/releases)
- [Commits](stellar/rs-soroban-env@v25.0.1...v26.0.0)

---
updated-dependencies:
- dependency-name: soroban-env-host
  dependency-version: 26.0.0
  dependency-type: direct:production
...

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Author: dependabot[bot]