fix(deps): bump tonlibjson-sys/ton-testnet from 0862cca to 25b4c67

Bumps [tonlibjson-sys/ton-testnet](https://github.com/ton-blockchain/ton) from `0862cca` to `25b4c67`.
- [Release notes](https://github.com/ton-blockchain/ton/releases)
- [Commits](ton-blockchain/ton@0862cca...25b4c67)

---
updated-dependencies:
- dependency-name: tonlibjson-sys/ton-testnet
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>