build(deps): bump third_party/yaml-cpp from 1d8ca1f to b95aa14 (#2395)

Bumps [third_party/yaml-cpp](https://github.com/jbeder/yaml-cpp) from `1d8ca1f` to `b95aa14`.
- [Release notes](https://github.com/jbeder/yaml-cpp/releases)
- [Commits](jbeder/yaml-cpp@1d8ca1f...b95aa14)

---
updated-dependencies:
- dependency-name: third_party/yaml-cpp
  dependency-type: direct:production
...

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