Bump unsafe-libyaml from 0.2.8 to 0.2.10 in /codegen-v2 (#3620)

Bumps [unsafe-libyaml](https://github.com/dtolnay/unsafe-libyaml) from 0.2.8 to 0.2.10.
- [Release notes](https://github.com/dtolnay/unsafe-libyaml/releases)
- [Commits](dtolnay/unsafe-libyaml@0.2.8...0.2.10)

---
updated-dependencies:
- dependency-name: unsafe-libyaml
  dependency-type: indirect
...

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