Bump third-party/fast_double_parser from 4f5e530 to 172f42b

Bumps [third-party/fast_double_parser](https://github.com/lemire/fast_double_parser) from `4f5e530` to `172f42b`.
- [Release notes](https://github.com/lemire/fast_double_parser/releases)
- [Commits](lemire/fast_double_parser@4f5e530...172f42b)

---
updated-dependencies:
- dependency-name: third-party/fast_double_parser
  dependency-type: direct:production
...

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