Bump third_party/jsoncpp/repo from 69098a1 to ba00447 (#37603)

Bumps [third_party/jsoncpp/repo](https://github.com/open-source-parsers/jsoncpp) from `69098a1` to `ba00447`.
- [Release notes](https://github.com/open-source-parsers/jsoncpp/releases)
- [Commits](open-source-parsers/jsoncpp@69098a1...ba00447)

---
updated-dependencies:
- dependency-name: third_party/jsoncpp/repo
  dependency-type: direct:production
...

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Author: dependabot[bot]