Bump third-party/fast_double_parser from `305e6c8` to `252029d`

Bumps [third-party/fast_double_parser](https://github.com/lemire/fast_double_parser) from `305e6c8` to `252029d`.
- [Release notes](https://github.com/lemire/fast_double_parser/releases)
- [Commits](https://github.com/lemire/fast_double_parser/compare/305e6c8170d640028f6ef0884d4903fb5fccd85b...252029ddac664370bdda3f0761675785d92a1573)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/third-party/fast_double_parser b/third-party/fast_double_parser
index 305e6c8..252029d 160000
--- a/third-party/fast_double_parser
+++ b/third-party/fast_double_parser
@@ -1 +1 @@
-Subproject commit 305e6c8170d640028f6ef0884d4903fb5fccd85b
+Subproject commit 252029ddac664370bdda3f0761675785d92a1573